Mathematics, 21.11.2019 03:31 pdipti725
In a large professional organization, a proportion p = 0.745 are males. we intend to take a random sample of size n from this population. call the proportion in the sample that is male.
(a) what is the mean value for ?
(b) compute the sd() when (i) n = 20, (ii) n = 200, and (iii) n = 2000.
write a sentence explaining how the value for sd() changes as n increases.
(c) for which of the three values for n in part (b) may we assume that will have a normal distribution?
(d) suppose n = 200. complete the following sentence: in this case, the sampling distribution of is approximately the n( , ) model.
(e) call the proportion in the sample that is female. if n = 200, compute does it make sense that your answer will be the same as your answer in part (b)(ii)? explain.
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