(Answered) A random sample of size n is drawn from a population with

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A random sample of size n is drawn from a population with mean μ and standard deviation σ . The mean and standard deviation of the sample are X =45 and s = 5.8.

a. Calculate a 95% confidence interval for μ by using the sample size n=30

b. Calculate a 98% confidence interval for μ by using the sample size n=60

a) Find a 95% confidence interval for the mean µ. b) Find a 98% confidence interval for the mean µ.

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