a. A random sample of 25 was drawn from a population. The sample mean and standard deviation
Question:
a. A random sample of 25 was drawn from a population. The sample mean and standard deviation are x̄ = 510 and s = 125. Estimate µ with 95% confidence.
b. Repeat part (a) with n = 50.
c. Repeat part (a) with n = 100.
d. Describe what happens to the confidence interval estimate when the sample size increases.
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a 510 206412525 510 5160 LCL 45840 UCL ...View the full answer
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Related Book For 
Statistics For Management And Economics Abbreviated
ISBN: 9781285869643
10th Edition
Authors: Gerald Keller
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