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Using Microsoft Excel, create a correlation analysis of Wal-Mart's annual net income over the past 10 years compared with Sears's annual net income over the past 10 years and interpret the results.
Do both companies' net incomes fall during a recession?
Using Microsoft Excel, create a multiple regression equation that explains Wal-Mart's annual net income and interpret the results.
Using Microsoft Excel, create a multiple regression equation that explains Sears's annual net income and interpret the results.
People in a large population average 60 inches tall. You take a random sample and will be given a dollar for each person in your sample who is over 65 inches tall.
Find the minimum sample size needed using a prior study that found that 36% of the respondents said they support abolishing the penny.
Z score on comparison distribution for sample score and your conclusion. Suppose that all population are normally distributed.
The owner of a restaurant serving Continental-style entrees has the business objective of learning more about patterns of patron demand for the Friday to Sunday weekend time period.
Gestational Age (Gestage, weeks) for sample of 100 low birth weight infants, and output from fitting a simple linear regression model to data, regressing Headcirc (Y) on Gestage (X).
If all samples of size 64 are drawn, mean of sample according to Central Limit Theorem is 100.
If Chebychev Inequality gives the lower bound for probability. For the present problem the lower bound for the probability is 0.75 and actual probability is 0.87.
Assuming the population is large, which sample size will give the smallest standard deviation to the statistic and select the numbers for the first five to be interviewed.
What is the probability that a randomly selected automobile manufactured by the company will have a defective microprocessor?
Clark Heter is an industrial engineer at Lyons Products. He would like to conclude whether there are more units produced on the afternoon shift than on the day shift. A sample of 54 day-shift workers showed that the mean number of units produced w..
Which of the following is a major difference between the binomial and the hypergeometric distributions?
The Roller Products Company produces roller skates and skateboards. It has three production lines. Production line 1 makes skateboard platforms.
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