H1: At least two of the means differ from each other.
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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Only answer 2,3,4
4. greater than alpha or less than alpha

Transcribed Image Text:A researcher wants to know if the clothes a woman wears is a factor in her GPA. The table below shows
data that was collected from a survey.
Jeans
Dress
Skirt
Shorts
3.8
3.9
3.9
2
3.5
3.5
3.7
3.2
2.9
3.4
2.8
4
3
2.4
2.2
2.7
1.9
2.1
3.8
3.9
1.8
2.4
3.5
2
3
1.8
3.4
3
3.7
3.6
3.1
2.3
Assume that all distributions are normal, the four population standard deviations are all the same, and the
data was collected independently and randomly. Use a level of significance of a = 0.05.
Ho: Hi = 2 = 13 = 4
H1: At least two of the means differ from each other.
1. For this study, we should use Select an answer v
2. The test-statistic for this data =
(Please show your answer to 3 decimal places.)
3. The p-value for this sample =
(Please show your answer to 4 decimal places.)
4. The p-value is (Select an answer
5. Base on this, we should Select an answer
6. As such, the final conclusion is that...
) hypothesis
O There is insufficient evidence to support the claim that the clothes a woman wears is a factor
in GPA.
O There is sufficient evidence to support the claim that the clothes a woman wears is a factor in
GPA.
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