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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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blakenordgaard blakenordgaard
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A month ago
A psychologist is studying the effect of belly stars on Sneetches. A random sample of four Sneetches is drawn, and a test of self-image is given to each Sneetch before and after having the belly star status changed. (If the Sneetch initially had a star, it was removed; if it did not have a star, one was created on the Sneetch using the patented “Star-off/Star-on” procedure.) From the following sample data, does it appear that changing belly star status increases the average self-image of Sneetches? Select the appropriate critical value (CV), test statistic (TS), and decision. (Useα= 0.10).

​

Sneetch number1234
Image score before1208810025
Image score after13010011055

​



▸

CV = –1.6377; TS = –3.19; rejectH0



▸

CV = –4.5407; TS = –6.38; rejectH0



▸

CV = –1.3968; TS = –15.50; rejectH0



▸

CV = –2.8965; TS = –6.38; fail to rejectH0

Textbook 
Introductory Statistics: A Problem-Solving Approach

Introductory Statistics: A Problem-Solving Approach


Edition: 3rd
Author:
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szsz
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CV = –1.6377; TS = –3.19; rejectH0
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blakenordgaard Author
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A month ago
This site is awesome
Starfiew
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Yesterday
Thanks
deathDoUsPart
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2 hours ago
Thanks for your help!!
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