[統計] type II error
Suppose a null hypothesis is that the population mean is greater
than or equal to 100. Suppose further that a random sample of
48 items is taken and the population standard deviation is 14.
use an alpha = 0.05 and solve for the probability of committing
a Type II error if the population mean is mean(a) = 98.6
答案是0.8289，
我一直算到0.9xxx
我用0.05的z (1.645)和x=100去算的，
這樣不對嗎???
謝謝 >"<
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※ 編輯: lynnabc236 來自: 140.112.218.218 (04/25 12:21)
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