Let x represent the average annual salary of college and university professors (in thousands of dollars) in the United States. For all colleges and universities in the United States, the population variance of x is approximately ?2 = 47.1. However, a random sample of 13 colleges and universities in Kansas showed that x has a sample variance s2 = 85.2. Use a 5% level of significance to test the claim that the variance for colleges and universities in Kansas is greater than 47.1.   Find the value of the chi-square statistic for the sample. (Round your answer to two decimal places.)   What are the degrees of freedom?

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A: given data puma tiresx¯1  = 54.71s12 = 5.95n1 = 14eternal tiresx¯2  = 50.21s22 = 37.75n2 = 15α =…

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A:

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A: We have to fill blanks.

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A:

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A: The provided information is:

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.