Unformatted text preview: = .159. Is the difference in crop yield between the two plots statistically significant at the alpha level of .05? 2. A report on salary levels for full professors in the social sciences at public research universities provides the following data for separate samples of men and women. The 400 men sampled earned an average salary of $80,000 and the 50 women sampled earned an average salary of $70,000. The standard error of the difference between these two means is $3,000. Is the difference statistically significant at the alpha level of .05? At the .01 level? What is the exact pvalue? Interpret the pvalue....
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This note was uploaded on 10/25/2010 for the course POLI 4150 taught by Professor Wilk during the Fall '10 term at UGA.
 Fall '10
 wilk

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