#About statistics

4 messages · Page 1 of 1 (latest)

misty kraken
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The first image shows the theorem along the question, the second shows the question, and the third shows the answer to this question.

I don't understand why U^2 (unbiased variance) is used in the denominator of T in the theorem, but S^2 (sample variance) is used in the answer to the question. Please help.

IMG_1426.png IMG_1427.png IMG_1428.png
hallow dustBOT
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misty kraken
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+close