Find the indicated percentile or quartile for the given data

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ASSIGNMENT -

QUESTION 1 - A medical research team studied the ages of patients who had strokes caused by stress. The ages of 34 patients who suffered stress strokes were as follows.

29, 30, 36, 41, 45, 50, 57, 61, 28, 50, 36, 58, 60, 38, 36, 47, 40, 32, 58, 46, 61, 40, 55, 32, 61, 56, 45, 46, 62, 36, 38, 40, 50, 27

Construct a frequency distribution for these ages. Use 8 classes beginning with a lower class limit of 25. Find the relative frequency for the 2nd class. (Round answer to the nearest hundredth and then convert your result into a percent).

QUESTION 2 - Find the mean of the set of data. (Round your answer to one decimal place.)

230, 220, 212, 212, 212, 212, 220, 215, 215, 215, 220, 220

QUESTION 3 - Find the indicated percentile or quartile for the given data values. (Round answer to the nearest tenth when necessary)

110, 120, 178, 213, 234, 234, 234, 237, 240, 243, 245, 245, 250, 250, 251, 252, 254, 255, 255, 259, 260, 266, 269, 273

Find Q3.

QUESTION 4 - Find the standard deviation of the data points below. (Round to the nearest thousandth)

$54,410

$51, 991

$51,730

$51,300

$51,196

$51,190

$51,122

$51,196

$51,037

$50, 875

QUESTION 5 - Identify the sampling technique used to obtain a sample. (Check your spelling)

A deck of cards is shuffled and a card is drawn at random.

QUESTION 6 - Identify the number as either continuous or discrete. (Check your spelling!)

The number of freshmen entering college in a certain year is 621.

QUESTION 7 - Identify the number as either continuous or discrete. (Check your spelling!)

Earthquake measurements.

QUESTION 8 - Find the standard deviation for the given data. (Round your final answer to one more decimal place than that used for the observations). The normal monthly precipitation (in inches)

3.5, 1.6, 2.4, 3.7, 4.1, 3.9, 1.0, 3.6, 4.2, 3.4, 3.7, 2.2

QUESTION 9 - The following scores on the midterm exam in Chemistry 102 were recorded. (Round answer to a whole number)

93, 81, 59, 69, 82, 74, 61, 77, 95, 84, 88, 71, 86, 97, 63, 72, 89, 80, 60, 98, 91, 62, 78, 83, 76, 81, 94, 66, 83, 96

Find the 4th quartile, Q4.

QUESTION 10 - Identify the type of study as prospective, retrospective, or cross-sectional. (Check your spelling!)

A town obtains current employment data by polling 10,000 of its citizens this month.

QUESTION 11 - Find the mode(s) of the data points below. If there multiple modes, list them in ascending order no exceptions using a comma. (Do not place any unnecessary spaces in your answer) If no mode exist, state that (no mode).

78 81 95 73 69 79

92 73 90 97 88 93

70 85 86 78 69 80

QUESTION 12 - Determine whether the given value is a statistic or a parameter. (Check your spelling!)

A sample of 120 employees of a company is selected, and the average age is found to be 37 years.

QUESTION 13 - Find the median. (Round answer to the nearest hundredth)

0.88, 1.18, 0.64, 1.62, 0.75, 0.85, 1.18, 1.53, 0.91, 0.88, 1.39, 1.07, 0.47, 1.39, 0.85, 1.07, 1.72, 0.75, 1.12, 0.89, 0.56

QUESTION 14 - Identify the type of study as statistic or parameter. (Check your spelling!)

I mean IQ score for subjects taking the Wechsler Adult Intelligence Scale IQ test is 100.

QUESTION 15 - Find the mean of the data points below. (Round your answer to the nearest hundredth)

11, 3, 0, -2, 3, -2, -2, 5, -2, 7, 2, 4, 1, 8, 1, 0, -5, 2

QUESTION 16 - Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. (Check your spelling!)

Years in which U.S. presidents were inaugurated.

QUESTION 17 - Find the variance for the given data. (Round to the nearest hundredth)

Fred, a local mechanic, gathered the following data regarding the price, in dollars, of an oil and filter change at twelve competing service stations:

32.95, 24.95, 26.95, 28.95, 18.95, 28.95, 30.95, 22.95, 24.95, 26.95, 29.95, 28.95

QUESTION 18 - Find the variance for the given data. (Round your answer to one more decimal place than the original data.)

The normal monthly precipitation (in inches) for August is listed for 12 different U.S. cities.

3.5, 1.6, 2.4, 3.7, 4.1, 3.9, 1.0, 3.6, 4.2, 3.4, 3.7, 2.2

QUESTION 19 - Determine which of the five levels of measurement (random, stratified, systematic, cluster, convenience) is most appropriate. (Check your spelling!)

An author collected sample data by randomly selecting 20 ddifferent pages from a printed version of the Merriam-Webster Dictionary and then counting the number of defined words on each of those page.

QUESTION 20 - Find the standard deviation of the set of data. (Round your answer to one decimal place.)

230, 220, 212, 212, 212, 212, 220, 215, 215, 215, 220, 220

QUESTION 21 - Is the study experimental or observational? (Check your spelling!)

A doctor performs several diagnostic tests to determine the reason for a patient's illness.

QUESTION 22 - Find the approximate mean for the grouped frequency distribution. Use the class midpoint to represent each class. (Round answer to the nearest hundredth).

Score

Frequency

60-69

3

70-79

12

80-89

7

90-99

2

QUESTION 23 - Identify the sampling technique used to obtain a sample. (Check your spelling)

A group of people are classified according to height and then random samples of people from each group are taken.

QUESTION 24 - Identify the type of study as statistic or parameter. (Check your spelling!)

A study was conducted of all 2223 passengers aboard the Titanic when it sank.

QUESTION 25 - Find the mean for the given data. (Round your final answer to one more decimal place than that used for the observations.)

The normal monthly precipitation (in inches) for August is listed for 12 different U.S. cities.

3.5, 1.6, 2.4, 3.7, 4.1, 3.9, 1.0, 3.6, 4.2, 3.4, 3.7, 2.2

QUESTION 26 - A car insurance company conducted a survey to find out how many car accidents people had been involved in. They selected a sample of 32 adults between the ages of 30 and 70 and asked each person how many accidents they had been involved in the past ten years. The following data were obtained.

0 1 0 3 2 1 0 2 1 1 1 0 2 0 4 1 2 0 0 1 0 2 1 3 1 3 0 0 1 0 5 4

Construct a frequency distribution using classes based on a single value. Find the relative frequency for the 5th class. (Round answer to nearest hundredth and then convert your result into a percent).

QUESTION 27 - Identify the number as either continuous or discrete. (Check your spelling!)

George Washington was 188 cm tall.

QUESTION 28 - Identify the type of study as prospective, retrospective, or cross-sectional. (Check your spelling!)

The Nurses' Health Study was started in 1976 with 121,700 female registered nurses who were between the ages of 30 and 55. The subjects were surveyed in 1976 and every two years thereafter. The study is ongoing.

QUESTION 29 - Find the mean. (Round answer to the nearest hundredth)

0.88, 1.18, 0.64, 1.62, 0.75, 0.85, 1.18, 1.53, 0.91, 0.88, 1.39, 1.07, 0.47, 1.39, 0.85, 1.07, 1.72, 0.75, 1.12, 0.89, 0.56

QUESTION 30 - Identify the number as either continuous or discrete. (Check your spelling!)

Currently the House of Representatives has 435 members.

QUESTION 31 - Determine whether the given value is a statistic or a parameter. (Check your spelling!)

A health and fitness club surveys 40 randomly selected members and found that the average weight of those questioned is 157 lb.

QUESTION 32 - Sheryl's mean score on eight exams is 83.500. Find the sum of her scores.

QUESTION 33 - Find the mean of the data points below. (Round your answer to the nearest ten-thousandth)

332 302 235 100 90 88 84 75 67

QUESTION 34 - Identify the type of study as statistic or parameter. (Check your spelling!)

Among the flights included in the a particular sample of flights, 21% arrived late.

QUESTION 35 - Is the study experimental or observational? (Check your spelling!)

A political pollster reports that his candidate has a 10% lead in the polls with 10% undecided.

QUESTION 36 - Determine which of the five levels of measurement (random, stratified, systematic, cluster, convenience) is most appropriate. (Check your spelling!)

An author collected sample date by randomly selecting 12 different pages from Harry Potter and the Sorcerer's Stone and then finding the number of words in each sentence of each of those pages.

QUESTION 37 - Find the mean for the set of data. (Round to the nearest thousandth)

Value

Frequency

13

2

21

5

25

4

28

3

36

3

QUESTION 38 - In a school survey, students showed these preferences for instructional materials. Answer the question.

1461_figure.png

About how many students would you expect to prefer written materials in a school of 350 students? (Round answer to a whole number)

QUESTION 39 - Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. (Check your spelling!) Nationalities of survey respondents.

QUESTION 40 - Identify the type of study as statistic or parameter. (Check your spelling!) There are 50 state capitols.

QUESTION 41 - Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. (Check your spelling!) Ages of survey respondents.

QUESTION 42 - Identify the sampling technique used to obtain a sample. (Check your spelling) A game warden chooses to check for fishing licenses in every 5th boat he encounters on his patrol.

QUESTION 43 - Is the study experimental or observational? (Check your spelling!) A marketing firm does a survey to find out how many people use a product. Of the one hundred people contacted, fifteen said they use the product.

QUESTION 44 - Use the following frequency distribution to determine the modal class (or classes).

Class

Frequency

6-8

8

9-11

6

12-14

8

15-17

10

18-20

9

21-23

10

18-20

12-14

9-11

21-23

6-8

15-17

QUESTION 45 - Find the percentile the given data point below is located in from the given data vales. (Round answer to the nearest tenth)

110, 120, 178, 213, 234, 234, 234, 237, 240, 243, 245, 245, 250, 250, 251, 252, 254, 255, 255, 259, 260, 266, 269, 273

Data point 260.

QUESTION 46 - Find the median of the set of data. (Round your answer to one decimal place.)

230, 220, 212, 212, 212, 212, 220, 215, 215, 215, 220, 220

QUESTION 47 - Find the standard deviation for the given data. (Round your final answer to one more decimal place than that used for the observations.)

The normal monthly precipitation (in inches) for August is listed for 12 different U.S. cities.

3.5, 1.6, 2.4, 3.7, 4.1, 3.9, 1.0, 3.6, 4.2, 3.4, 3.7, 2.2

QUESTION 48 - Find the indicated percentile or quartile for the given data values. (Round answer to the nearest tenth when necessary)

110, 120, 178, 213, 234, 234, 234, 237, 240, 243, 245, 245, 250, 250, 251, 252, 254, 255, 255, 259, 260, 266, 269, 273

Find P60.

QUESTION 49 - Determine which of the five levels of measurement (random, stratified, systematic, cluster, convenience) is most appropriate. (Check your spelling!) In a Pew Research Center poll, 1007 adults were called after their telephone numbers were randomly generated by a computer, and 85% of the respondents were able to correctly identify what Twitter is.

QUESTION 50 - Find the mean for the given data. (Round to the nearest tenth) Fred, a local mechanic, gathered the following data regarding the price, in dollars, of an oil and filter change at twelve competing service stations:

32.95, 24.95, 26.95, 28.95, 18.95, 28.95, 30.95, 22.95, 24.95, 26.95, 29.95, 28.95

QUESTION 51 - Determine whether the given value is a statistic or a parameter. (Check your spelling!) After inspecting all of 55,000 kg of meat stored at the Wurst Sausage Company, it was found that 45,000 kg of the meat was spoiled.

QUESTION 52 - Is the study experimental or observational? (Check your spelling!) A clinic gives a drug to a group of ten patients and a placebo to another group of ten patients to find out if the drug has an effect on the patients' illness.

QUESTION 53 - Find the mean of the frequency distribution below. (Round to the nearest thousandth)

Value

Frequency

60

4

62

8

64

12

66

20

68

31

70

13

QUESTION 54 - Identify the number as either continuous or discrete. (Check your spelling!) The Honda Civic has 4 cylinders.

QUESTION 55 - Identify the type of study as prospective, retrospective, or cross-sectional. (Check your spelling!) A researcher plans to obtain data by following those in cancer remission since January of 2002.

QUESTION 56 - In a school survey, students showed these preferences for instructional materials. Answer the question.

2264_figure1.png

How many degrees are in the central angle for the "radio" sector? (Round answer to a whole number).

QUESTION 57 - Determine which of the five levels of measurement (random, stratified, systematic, cluster, convenience) is most appropriate. (Check your spelling!)

When collecting data from different sample locations in a lake, a researcher uses the "line transect method" by stretching a rope across the lake and collecting samples at ever interval of 5 meters.

QUESTION 58 - Find the mode(s) of the data points below. If there multiple modes, list them in ascending order using a comma. (Do not place any unnecessary spaces in your answer) If no mode exist, state that (no mode).

$54,410

$51, 991

$51,730

$51,300

$51,196

$51,190

$51,122

$51,196

$51,037

$50, 875

QUESTION 59 - Determine which of the five levels of measurement (random, stratified, systematic, cluster, convenience) is most appropriate. (Check your spelling!)

A market researcher selects 500 people from each of 10 cities.

QUESTION 60 - Find the mode(s) of the data points below. If there multiple modes, list them in ascending order no exceptions using a comma. (Do not place any unnecessary spaces in your answer) If no mode exist, state that (no mode).

332 302 235 100 90 88 84 75 67

QUESTION 61 - Find the range for the given data. (Round to the nearest dollar.) Fred, a local mechanic, gathered the following data regarding the price, in dollars, of an oil and filter change at twelve competing service stations:

32.95, 24.95, 26.95, 28.95, 18.95, 28.95, 30.95, 22.95, 24.95, 26.95, 29.95, 28.95

QUESTION 62 - Give the median of the data set represented by the box plot below.

398_figure2.png

QUESTION 63 - Identify the type of study as prospective, retrospective, or cross-sectional. (Check your spelling!)

A researcher plans to obtain data by following those in cancer remission prior to January of 2002.

QUESTION 64 - The following scores on the midterm exam in Chemistry 102 were recorded. (Round answer to a whole number)

93, 81, 59, 69, 82, 74, 61, 77, 95, 84, 88, 71, 86, 97, 63, 72, 89, 80, 60, 98, 91, 62, 78, 83, 76, 81, 94, 66, 83, 96

Find the 2nd quartile, Q2.

QUESTION 65 - Construct a box plot (5-Number Summary) from the data below. (Be sure to list your answers in the correct order i.e. Min(x), Q1, Q2, Q3, Max(x) using a comma as necessary. ONLY TYPE IN THE VALUE! Do not place a space in between your answers!)

30, 35, 38, 39, 50,

51, 54, 54, 51, 63,

77, 80, 81, 81, 83,

85, 87, 89, 90, 93,

93, 95, 97, 99, 107

QUESTION 66 - Find the standard deviation of the frequency distribution below. (Round to the nearest ten- thousandth)

Value

Frequency

60

4

62

8

64

12

66

20

68

31

70

13

QUESTION 67 - In a school survey, students showed these preferences for instructional materials. Answer the question.

1180_figure3.png

How many degrees are in the central angle for the "written" sector? (Round answer to the nearest tenths).

QUESTION 68 - Find the variance of the set of data. (Round your answer to one decimal place.)

230, 220, 212, 212, 212, 212, 220, 215, 215, 215, 220, 220

QUESTION 69 - Identify the number as either continuous or discrete. (Check your spelling!)

The average height of all freshmen entering college in a certain year is 68.4 inches.

QUESTION 70 - Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. (Check your spelling!)

The numbers of the current players for the Chicago Bulls basketball team are 1, 2, 5, 6, 9, 11, 13, 16, 20, 22, 26, 32, and 40.

QUESTION 71 - The following scores on the midterm exam in Chemistry 102 were recorded. (Round answer to a whole number)

93, 81, 59, 69, 82, 74, 61, 77, 95, 84, 88, 71, 86, 97, 63, 72, 89, 80, 60, 98, 91, 62, 78, 83, 76, 81, 94, 66, 83, 96

Find the 1st quartile, Q1.

QUESTION 72 - Here are the heights of the female employees at First City Bank. Create a box plot (5-Number Summary) for the female employees' heights. (Be sure to list your answers in the correct order i.e. Min(x), Q1, Q2, Q3, Max(x) using a comma as necessary. ONLY TYPE IN THE VALUE! Do not place a space in between your answers! )

Females

Height (inches)

Lauren

56

Tracie

59

Kim

60

Tiffany

62

Stacy

66

Jackie

66

Kellie

68

Pat

71

Beth

73

QUESTION 73 - Determine which of the five levels of measurement (random, stratified, systematic, cluster, convenience) is most appropriate. (Check your spelling!) In a clinical trial of the cholesterol drug Lipitor, subjects were partitioned into groups given a placebo or Lipitor doses of 10 mg, 20 mg, 40 mg, or 80 mg. The subjects were randomly assigned to the different treatment groups.

QUESTION 74 - The following scores on the midterm exam in Chemistry 102 were recorded. (Round answer to a whole number)

93, 81, 59, 69, 82, 74, 61, 77, 95, 84, 88, 71, 86, 97, 63, 72, 89, 80, 60, 98, 91, 62, 78, 83, 76, 81, 94, 66, 83, 96

Find the 3rd quartile, Q3.

QUESTION 75 - Find the variance. (Round answer to the nearest hundredth)

0.88, 1.18, 0.64, 1.62, 0.75, 0.85, 1.18, 1.53, 0.91, 0.88, 1.39, 1.07, 0.47, 1.39, 0.85, 1.07, 1.72, 0.75, 1.12, 0.89, 0.56

QUESTION 76 - In a school survey, students showed these preferences for instructional materials. Answer the question.

2067_figure4.png

About how many students would you expect to prefer TV in a school of 750 students? (Round answer to a whole number)

QUESTION 77 - Identify the type of study as prospective, retrospective, or cross-sectional. (Check your spelling!)

Researchers at the National Cancer Institute studied meat consumption and its relationship to mortality. Approximately one-half million people were surveyed, and they were then followed for a period of 10 years.

QUESTION 78 - Find the standard deviation of the frequency distribution below. (Round to the nearest thousandth)

Age (yr)

Frequency

14

43

15

33

16

40

17

32

18

33

70

13

QUESTION 79 - Find the mean of the data points below. (Round to the nearest tenth)

$54,410

$51, 991

$51,730

$51,300

$51,196

$51,190

$51,122

$51,196

$51,037

$50, 875

QUESTION 80 - A company had 80 employees whose salaries are summarized in the frequency distribution below. Find the standard deviation. (Round the answer to the nearest tenth)

Salary

Employees

5,001-10,000

16

10,001-15,000

12

15,001-20,000

15

20,001-25,000

11

25,001-30,000

26

QUESTION 81 - To get a C in history, Nandan must average 71 on four tests. Scores on the first three tests were 68, 78, and 61. What is the lowest score that Nandan can get on the last test and still receive a C? (Round the answer to a whole number)

QUESTION 82 - Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. (Check your spelling!)

You know the volume in of 20 different brains.

QUESTION 83 - Find the mode(s) of the data points below. If there multiple modes, list them in ascending order no exceptions using a comma. (Do not place any unnecessary spaces in your answer) If no mode exist, state that (no mode).

11, 3, 0, -2, 3, -2, -2, 5, -2, 7, 2, 4, 1, 8, 1, 0, -5, 2

QUESTION 84 - Find the variance of the data points below. (Round your answer to the nearest hundredth)

332 302 235 100 90 88 84 75 67

QUESTION 85 - Find the standard deviation of the data points below. (Round your answer to the nearest ten-thousandth)

332 302 235 100 90 88 84 75 67

QUESTION 86 - Here are the heights of the male employees at First City Bank. Create a box plot (5-Number Summary) for the male employees' heights. (Be sure to list your answers in the correct order i. e. Min(x), Q1, Q2, Q3, Max(x) using a comma as necessary. ONLY TYPE IN THE VALUE! Do not place a space in between your answers!)

Male

Height (inches)

Ronald

62

Robert

64

Jeff

66

Kevin

66

Ralph

68

Mike

70

Dean

73

Steven

75

Jason

78

QUESTION 87 - Determine which of the five levels of measurement (random, stratified, systematic, cluster, convenience) is most appropriate. (Check your spelling!) On the day of the last presidential election, ABC News organized and exit poll in which specific polling stations were randomly selected and all voters were surveyed as they left the premises.

QUESTION 88 - Find the standard deviation for the grouped frequency distribution. Use the class midpoint to represent each class. (Round answer to the nearest hundredth)

Score

Frequency

60-69

3

70-79

12

80-89

7

90-99

2

QUESTION 89 - Determine which of the five levels of measurement (random, stratified, systematic, cluster, convenience) is most appropriate. (Check your spelling!) The sexuality of women was discussed in Shere Hite's book Women and Love: A Cultural Revolution. Her conclusion were based on sample data that consisted of 4500 mailed responses from 100,000 questionnaires that were sent to women.

QUESTION 90 - Find the standard deviation for the given data. (Round to the nearest thousandth) Fred, a local mechanic, gathered the following data regarding the price, in dollars, of an oil and filter change at twelve competing service stations:

32.95, 24.95, 26.95, 28.95, 18.95, 28.95, 30.95, 22.95, 24.95, 26.95, 29.95, 28.95

QUESTION 91 - Find the percentile the given data point below is located in from the given data vales. (Round answer to the next whole number)

110, 120, 178, 213, 234, 234, 234, 237, 240, 243, 245, 245, 250, 250, 251, 252, 254, 255, 255, 259, 260, 266, 269, 273

Data point 213.

QUESTION 92 - Find the standard deviation. (Round answer to the nearest hundredth)

0.88, 1.18, 0.64, 1.62, 0.75, 0.85, 1.18, 1.53, 0.91, 0.88, 1.39, 1.07, 0.47, 1.39, 0.85, 1.07, 1.72, 0.75, 1.12, 0.89, 0.56

QUESTION 93 - Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. (Check your spelling!)

Student's grades, A, B, or C, on a test.

QUESTION 94 - Identify the number as either continuous or discrete. (Check your spelling!)

The total number of phone calls a sales representative makes in a month is 425.

QUESTION 95 - Use the following frequency distribution to determine the midpoint of the first class.

Class

Frequency

12-14

7

15-17

4

18-20

3

21-23

5

24-26

7

QUESTION 96 - Find the standard deviation of the data points below. (Round your answer to the nearest thousandth)

11, 3, 0, -2, 3, -2, -2, 5, -2, 7, 2, 4, 1, 8, 1, 0, -5, 2

QUESTION 97 - Construct a stem and leaf plot. The numbers below represent the commute times (in minutes) for a group of college students.

11, 16, 12, 16, 13, 25, 26, 35, 2, 12, 23, 12, 16, 34, 21, 4, 7, 24, 23, 34

A.

0

2 4 7

1

1 2 2 2 3 6 6 6

2

1 3 3 4 5 6

3

4 5

B.

0

2 4 7

1

1 2 2 2 3 6 6 6

2

1 3 4 5 6

3

4 4 5

C.

0

2 4 7

1

1 2 2 3 6 6 6

2

1 3 3 4 5 6

3

4 4 5

D.

0

2 4 7

1

1 2 2 2 3 6 6 6

2

1 3 3 4 5 6

3

4 4 5

QUESTION 98 - Identify the type of study as prospective, retrospective, or cross-sectional. (Check your spelling!)

Researchers from the National Institutes of Health want to determine the current rates of smoking among adult males and females. They conduct a survey of 500 adults of each gender.

QUESTION 99 - Find the range for the set of data.

Value

Frequency

13

2

21

5

25

4

28

3

36

3

QUESTION 100 - Jackie's sisters weigh 114 lb, 140 lb, 120 lb, and 129 lb. The average female in her city weighs 139.1 lb. How much does Jackie weigh if she and her sisters have an average weight of 139.1 lb? (Round the answer to the nearest tenth).

Reference no: EM132367430

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