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A researcher believes exercise reduces anxiety in women. She identifies a group of women who had not exercised before but are now planning to begin exercising. She gives them a 50-item anxiety inventory before they begin exercising and administers it again after six months of exercising. The anxiety inventory is measured on an interval scale and higher numbers indicate higher anxiety. In addition, scores on the inventory are normally distributed. The scores are given below. Calculate Confidence Interval based on differences. Calculate the 95% confidence interval for the differences, rounded to one decimal. Write lower bound-upper bound sepparated by comma.
Before.After
46 44
41 40
42 39
47 46
43 42
45 43
At a medical clinic, patient office visits are found to last a mean time of 17 min, with a standard deviation of 10 min.
Imagine we have the following dataset: each of the following represents X and Y pairs for each participant
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A bank loan officer knows that 12% of the bank's mortgage holders lose their jobs and default on the loan in the course of 5 years. She also knows that 20%.
Describes the selected research issue, problem, or opportunity.
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Formulate a linear programming model that can be used to determine the number of units each model that should be produced in order to maximize the total contribution to profit
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