Question: YouTube would like to test the hypothesis that the average length of an online video watched by a user is more than 8 minutes. A

  1. YouTube would like to test the hypothesis that the average length of an online video watched by a user is more than 8 minutes. A random sample of 37 people that watched online videos average 8.7 minutes in length. It is believed that the population standard deviation for the length of online videos is 2.5 minutes. YouTube would like to test at a 2% level of significance. State the null and alternative hypothesis and follow proper method to state your conclusion. (hint: state hypothesis, find the critical value, find rejection region under distribution curve, find test-statistic & p-value, state your conclusion)

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