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Calculate the variable cost per unit of a microwave, if the fixed cost of the company is $5 million, selling price per unit is $100, and breakeven point is 62,500 units.
What confidence level would you assign to the procedure in your example; that is, what percentage of the time do you think it produces your desired result?
Construct a 95% confidence interval estimate for the proportion of Americans who decided what to make for dinner either at the last minute or that day.
a standardized third grade reading test called the we can read test has a mean of 50 with a standard deviation of 10. a
in a survey of 300 college graduates 55 reported that they entered a profession closely related to their major if 7 of
A 2009 survey reported in USA TODAY asked U.S. households who cooks in the home on Mother's Day. The results from the survey are reported.
A directory of personal computer retail outlets in the United States contains 12,080 alphabetized entries. Explain how systematic sampling could be used.
The temperature ? measured in degrees centigrade is related to T by ? = 5/9(T - 32). Describe the probability law of ?.
Suppose such cattle sell at auction for 40 cents a pound. Find the mean and standard deviation of the sale prices for all the steers.
Refer to the Ischemic heart disease data set in Appendix C.9 and Case Study 16.51. Carry out a one-way analysis of covariance of this data set, where the response of interest is total cost (variable 2).
For each of the following situations, tell whether the two probabilities should be equal:
A chocolate bar is considered underweight if it weights less than 8.0 oz. How should the chocolate bar wrappers be labeled so that only 1% of such bars are underweight.
for the most recent year available the mean annual cost to attend a private university in the united states was 26889.
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