The data for a random sample of six paired observations are shown in the next table. a.
Question:
a. Calculate the difference between each pair of observations by subtracting observation 2 from observation 1. Use the differences to calculate and s2d.
b. If µ1 and µ2 are the means of populations 1 and 2, respectively, express µd in terms of µ1 and µ2.
c. Form a 95% confidence interval for µd.
d. Test the null hypothesis H0: µd = 0 against the alternative hypothesis Ha: µd 0. Use α = .05.
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Related Book For
Statistics For Business And Economics
ISBN: 9780321826237
12th Edition
Authors: James T. McClave, P. George Benson, Terry T Sincich
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