Answered: . Find the standardized test statistic…

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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1. Find the standardized test statistic to test the claim that μ1>μ2.
Two samples are randomly selected from each population. The sample statistics are given: n1=100, n2=125, x1=755, x2=740, σ1=45,

σ2=25

2. Given H0: μ=25, Ha: μ≠25, and P=0.031. Do you reject or fail to reject H0 at the 0.01 level of significance?

3. Suppose you want to test the claim that μ1≠μ2. Two samples are randomly selected from each population. The sample statistics are given below. At a level of significance of α=0.02, when should you reject H0? n1=51, n2=38, x1=2, x2=2.4, σ1=0.76, σ2=0.51

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