Part 4 of 5 Determine whether to reject H (Choose one) v the null hypothesis, H, at the a=0.10 level. Reject Do not reject Part: 4 /5 Part 5 of 5 © State a conclusion. There (Choose one) v enough...

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Questions 4 and 5.

4- Choose one
(Reject/Do not reject)

5- Choose one
(Is/Is not)

Extracted text: Part 4 of 5 Determine whether to reject H (Choose one) v the null hypothesis, H, at the a=0.10 level. Reject Do not reject Part: 4 /5 Part 5 of 5 © State a conclusion. There (Choose one) v enough evidence to conclude that the mean time of Facebook visits has decreased.


Extracted text: Facebook: A study showed that two years ago, the mean time spent per visit to Facebook was 20.2 minutes. Assume the standard devlation is d = 10.0 minutes. Suppose that a simple random sample of 103 visits was selected this year and has a sample mean of x= 19.2 minutes. A social scientist is interest to know whether the mean time of Facebook visits has decreased. Use the a 0.10 level of significance and the critical value method with the table. (a) State the appropriate null and alternate hypotheses. (b) Compute the value of the test statistic. (c) State a conclusion. Use the a =0.10 level of significance.