A transect is an archaeological study area that is ~ mile wide and 1 mile long.

Question

A transect is an archaeological study area that is ~ mile wide and 1 mile long. A site in a transect is the location of a significant archaeological find. Let x represent the number of sites per transect. In a section of Chaco Canyon, a large number of transects showed that x has a population variance (J2 = 43.8 In a different section of Chaco Canyon, a random sample of 24 transects gave a sample variance i = 68.9 for the number of sites per transect. Use an a = 0.05 to test the claim that the variance in the new section is greater than 43.8.

Given that the value of X2is 36.18, find ( or estimate) the Pvvalue of the sample test statistic.
A) P-Value<0.005

8) 0.005 < P-Value < 0.01

0.05 < P-Value < 0.1

0.01 < P-Value < 0.05

Explanation / Answer

H0: the population variance in the new section is not greater than 43.8.

H1: the population variance in the new section is greater than 43.8.

Test Statistic, ChiSq: 36.1799
Critical ChiSq: 35.17243
P-Value: 0.0395

Correct Answer: Option (C) 0.05 < P-Value < 0.10

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