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Author Question: A psychologist is studying the effect of belly stars on Sneetches. A random sample of four Sneetches ... (Read 117 times)

Dannyrod2

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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



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Marked as best answer by Dannyrod2 on Feb 26, 2023

SphnxKickin

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Dannyrod2

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Reply 2 on: Feb 26, 2023
Excellent


dawsa925

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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