Q snhu student login - Search x Home X D21 8-2 Participation Activities: M X zy Section 8.1 - MAT 240: Applie X zy Section 6.2 - MAT 240: Applie X + X C https://learn.zybooks.com/zybook/MAT-240-J1566-OL-TRAD-UG.22EW1/chapter/8/section/1?content_resource_id=52309995 Amazon.com - Onli... Booking.com McAfee Security LastPass password.. YouTube ) Maps M Gmail bbbbN1120. Amazon.com - Onli. .|LastPass Other favorites = zyBooks My library > MAT 240: Applied Statistics home > 8.1: Hypothesis tests for the difference between two population means zyBooks catalog ? Help/FAQ @ Schwandala Cooksey Jump to level 1 An online math tutor service would like to claim that the average time spent taking a standardized test after students go through tutoring is less than the average time spent before going through tutoring. A simple random sample of students takes a pre-test, then goes through tutoring and takes a post-test. Results of the sample are shown below. Before After Mean 79.278 75.556 What are the population parameters? Variance 126.448 125.203 Observations 18 18 The difference in the sample sizes v Pearson Correlation 0.521 Hypothesized Mean Difference df 17 Is the two-sample hypothesis test a paired t-test or an unpaired t-test? t Stat 1.438 P(T