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Assume that Wal-Mart buys a particular Television set for $85. The cost of placing an order for a shipment of TVs is $30. The cost of keeping inventory for Wal-Mart is 25% per year. They expect to sell an average of 500 TV sets in a year (standard deviation 25), at a fairly steady rate. The lead time is 2 weeks.If you were asked to create an (R,s,S) policy for this, what parameters would you pick? Give your reasons.
Compute lower and upper quartiles of log10-balances? Determine 95% range of the balances in $s? Express in English what the two boundaries mean.
Determine the rejection region for the hypothesis Ho : mean D= 0 if H a : mean D > 0. Use a = 0.01. z>
The cholesterol concentration in the yolks of each of a sample of 22 randomly selected eggs laid by free range chickens were found to have a mean value of 9.38 mg/g of yolk and a standard deviation of 1.62 mg/g.
An environmental agency recently claimed more than 28% of consumers have stopped buying a certain product because of environmental concerns.
Determine the relationship between pretest scores and final exam scores after controlling for cumulative GPA. Compute SPSS test would you run?
A run chart is developed that confirms process stability. The level of significance is chosen to be 0.01. (a) Is there evidence to suggest that the process average differs from the target value?
Determine the probability that a randomly selected teacher earns more than $525 per week?
Describe your selected research issue, problem, or opportunity. Formulate both a numerical and verbal hypothesis statement concerning your selected research issue, problem, or opportunity.
A campus organization will select one day of the week for an end of year picnic. Assume that the weekdays, Monday through Friday, are equally likely and that each weekend day
Sample data are reported for 50 employees of small companies, 75 employees of medium companies, and 100 employees of large companies.
A fabric manufacturer wants to know how large an advantage in strength fabrics treated by the Permafresh method have over the fabrics treated by the Hylite process. Give a 90% confidence interval for the difference in mean breaking strengths.
A man is in the process of buying a new car. He has a choice of 3 engine makes, 7 body styles and 10 colors. How many different cars does he have to choose from?
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