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Random Sample Obtain (generate) a random sample of 180 numbers between 1 and 60. You may use a calculator, excel, or a table of random numbers to achieve this. Use your sample to answer the following questions:
1. What is the mean?2. What is the mode?3. Compute the median.4. Does your sample have more than one mode?5. Summarize your sample into a frequency distribution with 6 classes.6. Draw a histogram to represent the distribution.7. Comment on the shape of the distribution.8. Calculate the standard deviation of the sample.9. Construct a cumulative distribution for your sample10. Plot your cumulative distribution.
The manufacturer of the X-15 steel-belted radial truck tire claims that the mean mileage the tire can be driven before the tread wears out is 60,000 miles. The standard deviation of the mileage is 5,000 miles.
He will then compare the season batting averages of group A (those with ballet training) and group B (those without ballet training) by comparing the mean of group A with the mean of group B.
Sources and Uses of Cash. State how each of the following events would affect the firm's balance sheet. State whether each change is a source or use of cash.
Suppose that 98% of the customers in your market have Internet access, and you select a random sample of 500 customers. What is the probability that the sample has:
Given the following sample information, test the hypothesis that the treatment means are equal at the .05 significance level.
Figures for the yearly crime rate (the number of crimes per 1,000 population) in Mississippi, USA from 1993 to 2002 are as follows:
Assume the probability that a person has the desease is 0.08 for all people, independently of each other. Compute the total expected number of tests necessary.
Critically discuss why the dowload is a continous numerical varaible and critically discuss why the download time is a ratio scaled variable.
Consider the following news headline, "Cigarette Smokers Make Lower College Grades than Nonsmokers" The news article goes on to say that researchers at a university collected information on rate of cigarette smoking (total number of cigarettes sm..
The average public elementary school has 450 students. assume the stand deviation of the distribution is 99. if a random sample of 36 public elementary schools is selected, find the probability that the number of students enrolled is between 445 a..
You only worry if there is at least a 50 or more percent chance that you have the disease. Suppose that test has same specificity = p For what value of p will you start to worry?
A new process for producing synthetic diamonds can be operated at a profitable level only if the average weight of the diamonds produced by the process is greater than 0.5 karat.
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