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8.38 Determine the sample size necessary to estimate p for the following
information.
hint:點估計
1.若樣本數n未知，E (error esitmation)已知，則求樣本數之方法
a.n >30，且知 P，則 n = Z*pq/E* (* means square)
b.無任何 P之訊息，為求p(1-p) max, thus p = 0.5，以此求算
c.已知 a < p < b，則使 p*介於 a、b之間並讓 p*(1-p*) max之p*值求算
d.use Chebyshev formula to figure what is N
N 大於等於 1/4αd*
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※ 編輯: lumiya 來自: 140.112.86.16 (12/27 15:12)