ou want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the population pr

Question

ou want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the population proportion. You would like to be 99% confident that you esimate is within 0.1% of the true population proportion. How large of a sample size is required

in progress 0
Ben Gia 5 years 2021-08-26T03:23:59+00:00 1 Answers 15 views 0

Answers ( )

  1. thachthao
    0
    2021-08-26T03:25:16+00:00
    Reply

    Answer: the required sample size =1658944

    Step-by-step explanation:

    When the prior population proportion for the study is unknown , then the formula for sample size is Sample \ size = 0.25(\dfrac{z^*}{Margin\ of \ error})^2

    z-value for 99% confidence = 2.576

    Sample \ size = 0.25(\dfrac{2.576}{0.001})^2\\\\=0.25(2576)^2\\\\=1658944

    Hence, the required sample size =1658944

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )