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Category > Management Posted 17 Jan 2018 My Price 3.00

advertising agency

An advertising agency that serves a major radio station wants to estimate the mean amount of time that the station s audience spends listening to the radio daily. From past studies, the standard deviation is estimated as 45 minutes.

a. What sample size is needed if the agency wants to be 90% confident of being correct to within 5 minutes?

b. If 99% confidence is desired, what sample size is necessary?

 

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Maurice Tutor
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Status NEW Posted 17 Jan 2018 10:01 PM My Price 3.00

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