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Merrill Lynch Securities and Health Care Retirement, Inc., are two large employers in downtown Toledo, Ohio. They are considering jointly offering child care for their employees. As apart of the feasibility study, they wish to estimate the mean weekly child-care cost of their employees. A sample of 10 employees who use child care reveals the following amounts spent last week.
$107 $92 $97 $95 $105 $101 $91 $99 $95 $104
Develop a 90 percent confidence interval for the population mean. Interpret the result.
Suppose that you select a 50 families sample. Which is the form expected from the distribution of the average or median of the sample?
The accounting department at Weston Materials, Inc., national manufacturer of unattached garages, reports that it takes two construction workers mean of 32 hours and standard deviation of 2 hours to erect the Red Barn model.
Suppose you were a manager of a business. You can only pick on method to solve the LP problems, which method would you choose and Why?
A company wants to know if minorities are more likely to be in certain job categories than others. Their data base codes employees 1 for clerical, 2 for custodial, and 3 for manager. A logistic equation was fit to the data with SPSS.
For the set of data below construct a grouped frequency distribution that as well contains the real limits of each interval, midpoint of each interval, the cumulative frequency,
Evaluate 2-month moving average and Exponential smoothing by MAD.
Draw the complete decision tree and determine whether the product should be launched or not.
Using the 0.01 significance level, can we conclude that there is a positive correlation between the variables?
We suggest that you use the graphical approach to CVP analysis to solve the following problem, but you may use any other method to find the answer.
A sample of 120 homes sold recently in a big city gave the mean price of homes equal to $270,000 and the standard deviation equal to $70,000. (a) What is the point estimate of the mean price of all homes in the big city?
If the average tax payer who makes $140,000 per year owes the government $18,200 with a standard deviation of $1500, and the IRS receives a 1040 tax documents from a customer who earned $140,000 that claims he only owes $12,000, should the IRS sus..
Jessica must finish two courses (much like myself), statistics and economics, in order to complete the requirements for a BA degree. All along she has maintained an 80% average.
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