Remaining Time: 1 hour, 57 minutes, 44 seconds. Question Completion Status: QUESTION 28 In order to make an inference about the average time SHSU students check their emails, a sample of 10 students was surveyed for how many times a day they check their emails, the sample mean is 20 times with the sample standard deviation 5 times. A sample of 20 professors was also surveyed for how many times a day they check their emails, the sample mean for professors is 50 times with the sample standard deviation 10 times. Assume equal population variance (6, ~ ,). If we want to finish the hypothesis test for some claim, a pooled standard deviation needs to be calculated. Now find the pooled standard deviation S QUESTION 29 In order to make an inference about the average time SHSU students check their emails, a sample of 11 students was surveyed for how many times a day they check their emails, the sample mean is 20 times with the sample standard deviation 5 times. A sample of 6 professors was also surveyed for how many times a day they check their emails, the sample mean for professors is 50 times with the sample standard deviation 8 times. Assume equal population variance (). If we want to finish the hypothesis test for some claim, a pooled standard deviation needs to be calculated. Now find the degrees of freedom of the test statistic. Click Save and Submit to save and submit. Click Save All Answers to save all answers. p 3 18 10 19 144 @ # % 5 6 8 9 O Q W E R T O