The random sample shown below was selected from a normal distribution 7,5,5,5,7,7 Complete parts a and b. a. Construct a

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The Random Sample Shown Below Was Selected From A Normal Distribution 7 5 5 5 7 7 Complete Parts A And B A Construct A 1 (18.01 KiB) Viewed 111 times

The random sample shown below was selected from a normal distribution 7,5,5,5,7,7 Complete parts a and b. a. Construct a 99% confidence interval for the population mean (4.20 7.80) (Round to two decimal places as needed.) b. Assume that sample mean x and sample standard deviations remain exactly the same as those you just calculated but that are based on a sample of n=25 observations. Repeat part a. What is the effect of increasing the sample size on the width of the confidence intervals? The confidence interval is ((Round to two decimal places as needed.)