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greetings, How do I solve these? not the answers, the set ups In a large population, 74% of the households have cable tv. A simple

greetings, How do I solve these? not the answers, the set ups

In a large population, 74% of the households have cable tv. A simple random sample of 144 households is to be contacted and the sample proportion computed. What is the mean and standard deviation of the sampling distribution of the sample proportions?

In a large population, 83% of the households have cable tv. A simple random sample of 121 households is to be contacted and the sample proportion computed. What is the probability that the sampling distribution of sample porportions is less than 75%?

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