What are the conditions for using the normal approximation for a sampling distribution of means?

1.Randomization Condition:  The sample should be a simple random sample of the population. 2.10% Condition: If sampling has not been made with replacement, then the sample size, n, must be no larger than 10% of the population. 3.Success/Failure Condition: The sample size has to be big enough so that both np and nq are at least 10.
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B) greg: 30 points , tremaine 38 points