An online math tutor service would like to claim that the average time spent taking a standardized test after studentsgo through tutoring is less than the average time spent before going through tutoring. A simple random sample ofstudents takes a pre-test, then goes through tutoring and takes a post-test. Results of the sample are shown below.MeanVarianceObservationsPearson CorrelationHypothesized Mean Differencedft StatP(T<=t) one-tailt Critical one-tailP(T<=t) two-tailt Critical two-tailConfidence LevelBefore After82.333 74.944110.118 199.820180.72718017-3.2270.002-1.7400.005-2.11099%What are the population parameters?PickIs the two-sample hypothesis test a paired t-test or an unpaired t-test?PickWhat is the level of significance? Ex: 0.12What is the null hypothesis? Ho: Mafter PickMbeforeWhat is the alternative hypothesis? Ha : Pafter PickShould Ho be rejected or does Ho fail to be rejected? PickWhat conclusion can be drawn from the data?Pickbefore✓evidence exists to support the claim that the mean time spent taking a test after tutoring is less thanthe mean time spent taking a test before tutoring.

Determine the population parameter. The population parameter is defined below as follows: From…

Answered: An online math tutor service would like…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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