It is commonly said that the average college student spends 10 hours per week on

Question

It is commonly said that the average college student spends 10 hours per week on the Internet. You believe that the true average sleep of the students should not be 10 hours per week, and decide to collect your own sample for a hypothesis test. You randomly sample 100 students from your college and find that on average they spent 13.5 hours a week online, with a sample variance of 9 hours. Write down and explain the null and alternative hypothesis. Write down the test statistics and explain in detail how it is distributed when the null hypothesis is true. Also explain in detail how the test statistic behave when the null hypothesis is false. What is Type I Error? State the significance level you will use in designing the test. And show the rejection intervals. Show in a graph the test rejection you would use. Be sure to label the distribution of the test statistic when the null hypothesis is true and indicate where the probability of Type I Error is depicted in your graph.

Explanation / Answer

1) The null hypothesis stted that a population parameter is equal to a value.It is often an initial claim that researchers specify using previous research or knoledge.

                 The alternative hypothesis stated that thew population parameter is different than the value of the population parameter in the null hypothesis.

2)

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.