Mathematics, 06.08.2019 01:30 hannahkharel2

Suppose a sample of 49 paired differences that have been randomly selected from a normally distributed population of paired differences yields a sample mean of d⎯⎯=4.2 and a sample standard deviation of sd = 7.6. (a) calculate a 95 percent confidence interval for µd = µ1 – µ2. can we be 95 percent confident that the difference between µ1 and µ2 is greater than 0?

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Suppose a sample of 49 paired differences that have been randomly selected from a normally distribut...