A transect is an archaeological study area that is 1/5 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 σ2 = 42.3. In a different section of Chaco Canyon, a random sample of 25 transects gave a sample variance s2 = 45.7 for the number of sites per transect. Use a 5% level of significance to test the claim that the variance in the new section is greater than 42.3. (b) Find the value of the chi-square statistic for the sample. (Round your answer to two decimal places.)
A transect is an archaeological study area that is 1/5 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 σ2 = 42.3. In a different section of Chaco Canyon, a random sample of 25 transects gave a sample variance s2 = 45.7 for the number of sites per transect. Use a 5% level of significance to test the claim that the variance in the new section is greater than 42.3.
(b) Find the value of the chi-square statistic for the sample. (Round your answer to two decimal places.)
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