MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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You are testing the claim that the mean GPA of night students is different from the mean GPA of day students. A sample of 24 night students and 20 day students and their GPA's are recorded below. Test the claim using a 10% level of significance. Assume the population variances are unequal and that GPAs are normally distributed. Give answers to 4 decimal places.

 

GPA-Night GPA-Day
3.7 3.56
2.87 2.97
3.43 2.2
3.62 3
3.31 3.15
3.02 2.92
3.69 3.49
3.45 2.95
3.17 3.03
2.86 3
2.93 3
3.59 2.74
3.13 3.2
3.68 2.7
3.7 3.55
3.29 3.45
2.9 4.13
3.09 2.59
3.11 3.2
3.1 3.32
3.17  
3.22  
3.37  
3.09  

 

What are the correct hypotheses? Note this may view better in full screen mode. Select the correct symbols in the order they appear in the problem.

H0:                            

H1:                           

Based on the hypotheses, find the following:

Test Statistic=

p-value=

The correct decision is to        .

The correct summary would be:       that the mean GPA of night students is different from the mean GPA of day students.

Expert Solution
Check Mark
Step 1

Introduction:

Denote μ1, μ2 as the true mean GPA of night students and day students, respectively.

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