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Unformatted text preview: Use a significance level of .05. A sample 0f 16 students has an average MPG=28 and a variance=18. 5. [15] Test the null hypothesis that the mean for NY greater than or equal to the mean for NJ. Use .05 significance level, a one tail test and the following data: NY NJ Mean 52 54 var 81 100 N 49 81 6[15] Test the hypothesis that the proportion of voters in Red states who support Social Security reform equals the proportion of voters in Blue states who support Social Security. . Use .05 significance level, a two tail test and the following data: number Blue Red voters 50 60 Support SS reform 30 45 7. [20] Are the means for majors in Economics, Business and Nursing the same? Test the hypothesis the means are equal. Use .05 significance level .and the following data. econ business nursing mean 35 42 37 var 25 26 17 n 25 25 25...
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 Spring '10
 VANDERHOFF
 Statistics

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