t methods - a tradi conclude, at a = .
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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Transcribed Image Text:t methods - a tradi
conclude, at a = .
Expert Solution
Step 1
The claim is that the test scores in the web based self-placed are lower.
Let 
denote the population mean of traditional method.
Let 
denote the population mean of web based self placed method.
The null hypothesis is,
The alternative hypothesis is,
The level of significance is ,
Critical Value:
From the alternative hypothesis, it is clear that the test is a right-tailed test.
From standard normal table at 0.05 level of significance the right tailed critical value is,
Decision rule:
Reject the null hypothesis if
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