Suppose a simple random sample of size n=1000 is obtained from a population whose size is N=1,000,000 and whose population proportion with a specified characteristic is p=0.61.
(a) What is the probability of obtaining x = 640 or more individuals with the characteristic?
P(x≥640) = ___________
******* There's a second part but I can't see it until I answer this part. Can you help me with the second part after part a is completed?
a) P(x≥640) is calculated by find the Z score at X=640 since because N=1000000 is very large to assume it as a normal distribution hence
Z at X=640
where,
now
P(x≥640)=P(Z> 1.95) which is computed using Z table shown below as
=0.0256
Suppose a simple random sample of size n=1000 is obtained from a population whose size is...
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