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Watching TV The 2012 general Social Survey asked a large number of people how much...

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Watching TV The 2012 general Social Survey asked a large number of people how much time they spent watching TV each day The mean number of hours was 3 09 with a standard deviation of 2 86 Assume that in a sample of 36 teenagers the sample standard deviation of daily TV time is 4 2 hours and that the population of TV watching times is normally distributed Can you conclude that the population standard deviation of TV watching times for teenagers is greater than 2 86 Use the a 0 01 level of significance Part 0 5 Part 1 of 5 State the appropriate null and alternate hypotheses Ho Choose one H 0 Choose one This hypothesis test is a ch X Espa o 6 V B

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