3.Paul Frank is an analyst for the retail industry. He is examining the role of television viewing by teenagers on the sales of accessory stores. He gathered data and estimated the following regression of sales (in millions of dollars) on the number of hours watched by teenagers (in hours per week): Salest = 1.05 + 1.6 TVt
Which of the following is a CORRECT interpretation of the estimated results? If TV watching: A) goes up by one hour per week, sales of accessories increase by $1.60. B) changes, no change in sales is expected. C) goes up by one hour per week, sales of accessories increase by $1.6 million. D) is zero (that is, every teenager turns off the TV for a week), the expected sales of accessories is $0.
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发表于 2008-4-1 13:28
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