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Home Q & A Board Science-Related Homework Help Mathematics
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Hog95 Hog95
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9 years ago
Ann conducts a study, and finds that the estimated population variances for the groups are 12.8, 16.3, 15.1, and 19.9. What is the within-groups estimate of the population variance?
A)   (12.82 + 16.32 + 15.12 + 19.92) / (4 – 1) = 351.18. 
B)   (12.82 + 16.32 + 15.12 + 19.92) / 4 = 263.39. 
C)   (12.8 + 16.3 + 15.1 + 19.9) / (4 – 1) = 21.37. 
D)   (12.8 + 16.3 + 15.1 + 19.9) / 4 = 16.03. 
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padrepadre
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9 years ago
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Hog95 Author
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#2
9 years ago
Thank you so much for the reply. Your answer makes a lot of sense.
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