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Author Question: The target grade distribution for a particular course is 10% A, 30% B, 40% C, 15% D, 5% F. Students ... (Read 78 times)

Gabby

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on: Feb 26, 2023
The target grade distribution for a particular course is 10% A, 30% B, 40% C, 15% D, 5% F. Students complain that a particular professor who teaches this course is much harder than others. They survey 152 former students of this professor’s class and find they received the following grades: 10 A, 44 B, 64 C, 23 D, 11 F. Conduct aχ2 goodness-of-fit test to see if the data provide sufficient evidence to support the students’ complaint. Select the appropriate critical value (CV), test statistic (TS), and decision. (Useα= 0.10.)

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CV = 13.2767, TS = 519.80, rejectH0


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CV = 9.2364, TS = 3.5263, fail to rejectH0


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CV = 7.7794, TS = 519.80, rejectH0


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CV = 7.7794, TS = 3.5263, fail to rejectH0

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Marked as best answer by Gabby on Feb 26, 2023

DevinBrifm

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Reply #1 on: Feb 26, 2023
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Only 29% of students answer this correctly

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Gabby

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Reply 2 on: Feb 26, 2023
YES! Correct, THANKS for helping me on my review

pratush dev

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

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