Researchers would like to investigate whether the time of the exam could affect students'performance on a test. They randomly select 120 students and let 50 of them take exams in themorning whereas 70 of them tested in the afternoon. Assume the 120 students have similar skillsand the exams are of similar difficulties.The researchers want to do a statistical test to understand if the mean morning test score is in factdifferent from the mean afternoon test score session.a) Which of the following inference procedure they should choose [Select ]b) What is the most appropriate null hypothesis for this test?[ Select ]c) The p-value for this is 0.893. How would the researcher interpret this p-value? Is there evidencethat there is a difference in mean morning test scores and afternoon test scores?[ Select ]

Given : Morning : Number of students = 50 Afternoon : Number of students = 70

Answered: Researchers would like to investigate…

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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