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Use an analysis of variance with α = .05 to determine whether these data indicate any significant mean differences among the treatments. A) F critical = B) F ratio = C) Is the decision to 'reject' or 'retain' the null hypothesis?

Use an analysis of variance with α = .05 to determine whether these data indicate any significant mean differences among the treatments. A) F critical = B) F ratio = C) Is the decision to 'reject' or 'retain' the null hypothesis?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 27PFA
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Use an analysis of variance with α = .05 to determine whether these data indicate any significant mean differences among the treatments.

A) F critical = 

B) F ratio = 

C) Is the decision to 'reject' or 'retain' the null hypothesis?

(Use this data to answer questions 18-20). A psychologist would like to examine the effects of different testing methods on the final performance of college students. One group has regular quizzes, one group has three large exams, and the third group only has a final exam. At the end of the course, the psychologist interviews each student to get a measure of the student's overall knowledge of the material. The results were as follows: Quizzes Exams Final Only. G = 48 ΣΧ2 = 272 F 574 00 3674 ON ON 8 T = 24 SS = 10 Between Within Total Source SS T = 20 SS = 10 df 2 2 T = 4 SS = 4 MS
Transcribed Image Text:(Use this data to answer questions 18-20). A psychologist would like to examine the effects of different testing methods on the final performance of college students. One group has regular quizzes, one group has three large exams, and the third group only has a final exam. At the end of the course, the psychologist interviews each student to get a measure of the student's overall knowledge of the material. The results were as follows: Quizzes Exams Final Only. G = 48 ΣΧ2 = 272 F 574 00 3674 ON ON 8 T = 24 SS = 10 Between Within Total Source SS T = 20 SS = 10 df 2 2 T = 4 SS = 4 MS
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