The data for a random sample of six paired observations are shown in the following table. a.
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The data for a random sample of six paired observations are shown in the following table.
a. Calculate the difference between each pair of observations by subtracting observation 2 from observation 1.
Use the differences to calculate xd and sd 2 .
b. If m1 and m2 are the means of populations 1 and 2, respectively, express md in terms of m1 and m2.
c. Form a 95% confidence interval for md.
d. Test the null hypothesis H0: md = 0 against the alternative hypothesis Ha: md 0. Use a = .05.
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Related Book For 
Statistics Plus New Mylab Statistics With Pearson Etext Access Card Package
ISBN: 978-0134090436
13th Edition
Authors: James Mcclave ,Terry Sincich
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