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PROBLEM 3. 15pts Construct the 90 percent Confidence intervals for the following cases, state any needed...

PROBLEM 3. 15pts Construct the 90 percent Confidence intervals for the following cases, state any needed assumptions, and give interpretation

1. n = 9 sample mean = 75 sigma = 5. Find Confidence interval for mu

2. n= 9 sample mean = 75 S = 5. Find Confidence interval for mu

3. n= 100 items 40 are defective. Find the confidence interval of p

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