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To determine how many hours per week freshmen college students watch television, a random sample of 225 students was selected. It was determined that the students in the sample spent an average of 35 hours watching TV per week. The population standard deviation is known to be 12 hours. Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week

  • statistics - ,

    95% = mean ± 1.96 SEm

    SEm = SD/√n

    Insert values and calculate.

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