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What is the probability that an IRS auditor will catch only 2 income tax returns with illegitimate deductions if she randomly selects 5 returns from among 15 returns, of which 9 contain illegitimate deductions?
Standard deviation of $50. Provide a 95% confidence interval estimate of the variance of the population of the checking accounts.
Test the hypothesis at the 0.05 level. What is the value of the test statistic calculated from the sample data? What is the critical value of the test statistic?
A file cabinet manufactor estimates that 5% of it's file cabinets will have drawers that close improperly. Assume a production of 120 cabinets is completed. What is the mean and the standard deviation of this distribution?
Scrap rates per thousand (parts whose defects cannot be reworked) are compared for 5 randomly selected days at three plants. Does the data prove a significant difference in mean scrap rates?
a refrigerated delivery truck has a load of perishable goods worth 10000. if the refrigeration unit is not cold enough
What recommendation would you have for each state to maximize revenue? c. Which state was most likely to be following a political unsupportable policy?
Assume that an ecologist is studying the effects of the insecticide DDT on wild birds in Sumatra. DDT sprayed on insects and vegetation subsequently eaten by female birds seems to affect the thickness of their eggshells and thus affects the protec..
Norm Dickins the town pharmacist is interested in obtaining a loan to expand his business. He will get a better interest rate if he can reasonably demonstrate that his near-term monthly revenues will be between $10,000 and $15,000.
The standard deviation of 6. What is the probability that a class of 50 has an average midterm mark that is less than 75?
A committe studying employer-employee relations proposed that a rating system be adopted. Each employee would rate his or her inmediate supervisor and in turn the supervisor would rate each employee.
Creating histogram to determine if the data from three 'product parameters' are normally distributed.
Test whether race and NATFAE are independent (α = 0.05). What do you conclude?
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