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Confidence Intervals: Time Watching TV

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The sponsors of television shows targeted at the children's market wanted to know the amount of time children spend watching TV, since the types and number of programs and commercials are greatly depended on this information. As a result, a survey of 100 children was conducted to estimate the average number of hours children spend watching TV per week. Historically, it is known the population standard deviation is 8 hours. The sample mean was 27.5 hours. Find a 95% confidence interval estimate of the average number of hours children spend watching TV.

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Solution Summary

The solution determines the confidence interval of time watching tv.

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