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Suppose that the time allotted for commercials on a primetime tv program is known to have...

Suppose that the time allotted for commercials on a primetime tv program is known to have a normal distribution with a standard deviation of 1.5 minutes. A study show of 35 showings gave an average commercial time of 10 minutes. Compute for the maximum error, given a 96% confidence level.

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Answer #1

Here

sample mean

population standard deviation

and sample size

Margin of error (ME) =

a 96% confidence interval for average commercial time

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