Data is collected on the round trip time to a distant host on the internet. We collect a data set of size 39 with sample mean iT = 97 ms and sample standard deviation s = 110 ms. Assume the data follows a normal random variable 1. Consider the 80% confidence interval for the mean of X.  What is the lower limit on the confidence interval? What is the upper limit on the confidence interval? 2. Consider the 80% confidence interval for the variance o? of X What is the lower limit on the confidence interval? What is the upper limit on the confidence interval? 3. Consider the 80% confidence interval for the standard deviation a of X. What is the lower limit on the confidence interval? What is the upper limit on the confidence interval?

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