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According to CNN business partner Careerbuilder.com, the average starting salary for accounting graduates in 2008 was at least $47,413. Suppose that the American Society for Certified Public Accountants planned to test this claim by randomly sampling 200 accountants who graduated in 2008. State the appropriate null and alternative hypotheses.
For each of the F statistics given above find the degrees of freedom and an approximate P-value. Summarize the results of these tests.
Construct a 95% confidence interval estimate of their mean weight.
What is an estimate of the proportion defective for the piston manufacturing process when it is control? Construct a p chart for the manufacturing process, assuming each sample has 200 pistons.
From this group of 2000 accounts what is the probability that an account has a balance of $500 or more, given that it is 3 or more years old?
Find the standard error of the mean Also establish an interval estimate around the sample mean using one standard deviation of the mean.
Determine the range, variance, and standard deviation for sample data and find the minimum number of visits required receive a gift.
Should mean disposable income be used to predict sales based on the sample of 14 Sunflower stores? Are there any other factors not mentioned by the leasing agents that might be relevant to the store leasing decision?
Computing the mean, standard deviation values for the given data - Describe how statistics is being misused in this situation
the irs will do a random sampling of tax returns filed in 2010. they are concerned about major fraud and have a new
Recognize the kind of sampling (random, systematic, convenience, stratified, cluster) employed whenever a sample of people who smoke is obtained as explained below.
Find the probability that a random sample of 50 customers will take between 90 and 112.5 minutes to complete all their transactions. That is, find the probability that will be between 1.8 and 2.25 minutes.
If there is a difference between the two groups of scores. Briefly explain how the difference may have been caused by the treatments.
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