Answered: what sample size should a researcher take if he wants to estimate a population proportion to be 2% of the true value with 90% confidence | bartleby
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Answered: what sample size should a researcher take if he wants to estimate a population proportion to be 2% of the true value with 90% confidence | bartleby
what sample size should a researcher take if he wants to estimate a population proportion to be 2% of the true value with 90% confidence
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Suppose a simple random sample of size n=20 is obtained from a population with μ=64 and σ=17 (a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities regarding the sample mean? Assuming this condition is true, describe the sampling distribution of x̅ (b) Assuming the requirements described in part (a) are satisfied, determine P(x̅<67.3) (c) Assuming the requirements described in part (a) are satisfied, determine P(x̅ ≥65.2) (d)
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