a) A statistics practitioner drew a random sample of 400observations and found that X̄ = 700 a
Question: 3 a) A statistics practitioner drew a random sample of 400observations and found that \(\bar{X}\) = 700 and s = 100. Estimate the population mean with 90% confidence.
b) Repeat part a with a 95% confidence level
c) Repeat part a with a 99% confidence level
d) What is the effect on the confidence interval estimate of increasing the confidence level?
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Deliverable: Word Document
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