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...

Extracted text: 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. కిలంగ 82.333 After 74.944 110.118 199820 18 What are the population parameters? Mean Variance Observations Pearson Comelation Hypothesized Mean Difference 18 Pick 0.727 Is the two-sample hypothesis test a paired t-test or an unpaired t-test? 17 1Stat -3.227 Pick P(T<+t) one-tail="" டபnoloneinl="" pो०il="" two-tail="" t="" critical="" two-tail="" -1.740="" 0,005="" what="" is="" the="" level="" of="" significance?="" ex:="" 012="" -2.110="" confidence="" level="" what="" is="" the="" null="" hypothesis="" ho?="" pick="" what="" is="" the="" alternative="" hypothesis="" h,?="" pick="" should="" ho="" be="" rejected="" or="" does="" ho="" fail="" to="" be="" rejected?="" pick="" what="" conclusion="" can="" be="" drawn="" from="" the="" data?="" pick="" v="" evidence="" exists="" to="" support="" the="" claim="" that="" the="" mean="" time="" spent="" taking="" a="" test="" after="" tutoring="" is="" less="" than="" the="" mean="" time="" spent="" taking="" a="" test="" before="" tutoring.="">