Question: In Exercise 10.46, you compared the property evaluations of two tax assessors, A and B. Their assessments for eight properties are shown in the table:

In Exercise 10.46, you compared the property evaluations of two tax assessors, A and B. Their assessments for eight properties are shown in the table:

a. Use the sign test to determine whether the data present sufficient evidence to indicate that one of the assessors tends to be consistently more conservative than the other; that is, P(xA > xB) 1/2. Test by using a value of a near .05. Find the p-value for the test and interpret its value.
b. Exercise 10.46 uses the t statistic to test the null hypothesis that there is no difference in the mean property assessments between assessors A and B. Check the answer for Exercise 10.46 and compare it with your answer to part a. Do the test results agree? Explain why the answers are (or are not) consistent.

Property Assessor A Assessor B 276.3 288.4 280.2 294.7 268.7 282.8 276.1 279.0 275.1 286.8 277.3 290.6 269.1 281.0 275.3 279.1

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