A hospital marketing director has several research projects to undertake this quarter. He must try to determine the appropriate sampling methodology in light of each problem. Provide your recommendation on each issue:

a. The hospital urology department wants to establish a sexual dysfunction clinic. The department head wants to get an estimate of the number of males aged 35 to 60 in the community suffering some form of sexual dysfunction.
b. A primary care medical group is trying to determine whether patients are being greeted and serviced appropriately by the billing and admitting departments.
c. An MCO is trying to determine what concerns physicians have in agreeing to become part of its panel of doctors who will treat the managed care plan’s subscribers.

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An important application of regression analysis in accounting is in the estimation of cost. by collecting data on volume and cost and using the least squares method to develop an estimated regression equation relating volume and cost, an accountant can estimate the cost associated with a particular manufacturing volume. consider the following sample of production volumes and total cost data for a manufacturing operation. production volume (units) total cost ($) 400 4000 450 5000 550 5400 600 5900 700 6400 750 7000 compute b 1 and b 0 (to 2 decimals if necessary). b 1 b 0 complete the estimated regression equation (to 2 decimals if necessary). = + x what is the variable cost per unit produced (to 1 decimal)? $ compute the coefficient of determination (to 4 decimals). note: report r 2 between 0 and 1. r 2 = what percentage of the variation in total cost can be explained by the production volume (to 2 decimals)? % the company's production schedule shows 500 units must be produced next month. what is the estimated total cost for this operation (to 2 decimals)? $

Sam and diane are completing their federal income taxes for the year and have identified the amounts listed here. how much can they rightfully deduct? • agi: $80,000 • medical and dental expenses: $9,000 • state income taxes: $3,500 • mortgage interest: $9,500 • charitable contributions: $1,000.