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1. The proportion of a population with a characteristic of interest isp =0.76.Find the mean and standard deviation of the sample proportionobtained from arandom samples
1. The proportion of a population with a characteristic of interest isp =0.76.Find the mean and standard deviation of the sample proportionobtained from arandom samples of size 1200.
2. Random sample of size 225 are drawn from a population in which the proportion with the characteristic of interest is 0.25.Decide whether or not the sample size is large enough to assume that the sample proportionis normally distributed.
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