Chebyshev theorem-other statistic rules

Assignment Help Basic Statistics
Reference no: EM1398869

1.

I. Use Chebyshev's theorem to find what percent of the values will fall between 162 and 292 for a data set with a mean of 227 and standard deviation of 13.

II. Use the Empirical Rule to find what two values 99.7% of the data will fall between for a data set with a mean of 246 and standard deviation of 16.

2. Nine college students had eaten the following number of times at a fast food restaurant for dinner in the last ten days:

5, 2, 4, 0, 4, 6, 4, 2, 3

Find the mean, median, mode, range, and midrange for these data.

3. A Math test has a mean of 38 and standard deviation of 9.0. Find the corresponding z scores for:

I. a test score of 80

II. a test score of 22

4.

Rank the following data in increasing order and find the position and value of the 85th percentile.

0 8 6 1 9 7 1 0 1 7 5 4

5. The following data lists the average monthly snowfall for January in 15 cities around the US:

20 13 15 28 16 25 2 14

35 42 5 34 34 38 29

Find the mean, variance, and standard deviation. Please show all of your work.

6. Starting with the data values 70 and 100, add three data values to the sample so that the mean is 79, the median is 80, and the mode is 80.

Reference no: EM1398869

F distribution-anova

Why is the F distribution important? How do you determine if a significant difference exists among the groups in ANOVA? How do you determine differences between the groups i

Relative frequency of symbol errors in the simulated

Simulate the M-ary PSK system for M = 8 and M = 16. Let ERR denote the relative frequency of symbol errors in the simulated transmission in 105 symbols. For each value of M, g

Policyholders randomly selected for company records

An auditor for Health Maintenance Services of Georgia reports 40% of policyholders 55 years or older submit a claim during the year. Fifteen policyholders are randomly selec

Null hypothesis for equal levels of support

A poll found that 38% of male voters and 46% of female voters support a particular candidate. To test whether this candidate has equal levels of support between male and fem

Lean body mass and resting metabolic rate

Problem: Do heavier people burn more energy? We have data on the lean body mass and resting metabolic rate for 12 women who are subjects in a study of dieting. Lean body mas

What is the probability

What is the probability that on a randomly chosen day in the period for which our assumptions are made, the price of the stock will be more than $40 per share? Less than $30

Determining expected frequencies for chi-square test

Similar survey of student population 10 years ago found that coffee shop was favoured by 20% of students, and pizza and hamburger were each preferred by 40% of the students.

Slope of the least-squares line

Compute the following .r = correlation between x and y = - 0.7 = mean of the values of x = 50.25 = mean of the values of y = 31.77 = standard deviation of the values of x =

Reviews

Write a Review

 
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd