Question: A paired-difference experiment was conducted to compare two populations. The data are shown in the table. Use a sign test to determine whether the population

A paired-difference experiment was conducted to compare two populations. The data are shown in the table. Use a sign test to determine whether the population distributions are different.

a. State the null and alternative hypotheses for the test.
b. Determine an appropriate rejection region with Î± ‰ˆ .01.
c. Calculate the observed value of the test statistic.
d. Do the data present sufficient evidence to indicate that populations 1 and 2 are different?

Pairs Population 1 2 3 45 6 7 8.9 8. 9.3 7.7 10.4 8.3 7.4 8.8 7.4 9.0 7.8 9.9 8.1 6.9

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