Two random samples of 20 students were drawn independently from twopopulations of students. Assume their final exams are normally distributed (total points =100). The following statistics regarding their scores in a final exam were obtained:₁ = 76, 5₁ = 8, ₂ = 72, and s₂ = 6.5.X₁-S₁Test at the 5% significance level to determine whether we can infer that the twopopulation variances differ.Test at the 5% significance level to determine whether we can infer that the twopopulation means differ.Estimate with 95% confidence the difference between the two population means.d. Explain how to use the 95% confidence interval to test the hypotheses at α = .05.a.b.C.

Answered: Image /qna-images/answer/4122cb17-6a17-4709-9bbc-f587023d9fe2.jpg

Answered: Two random samples of 20 students were…

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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