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Author Question: A marketing class is engaged in a project to estimate the proportion of homes receiving both HBO and ... (Read 65 times)

notis

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on: Jun 24, 2018
A marketing class is engaged in a project to estimate the proportion of homes receiving both HBO and ShowTime cable service. The class plans to use a confidence coefficient of 0.95 and a maximum error of the estimate equal to 0.10 . If 2500 homes in this city receive cable service, determine the sample size for the class to use.

Question 2

In an effort to determine the average loaded weight of trucks leaving a gypsum wallboard plant, a random sample is to be taken from the 600 trucks scheduled for this month. From past studies, the population standard deviation is known to be 2500 lbs. A 95-percent confidence interval is to be used and the average, , is to be estimated within 500 pounds. Determine the sample size needed.


voltaire123

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Reply #1 on: Jun 24, 2018
Answer to Question 1

93

Answer to Question 2

83


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