# Project #10907 - Statistics

1.       A study is performed in a large southern town to determine whether the average weekly grocery bill per four-person family in the town is significantly different from the national average. A random sample of the weekly grocery bills of four-person families in this town is given in the file.

a.       Identify the null and alternative hypotheses for this situation.

b.       Assume that the national average weekly grocery bill for a four-person family is \$100. Test the hypothesis that the average weekly grocery bill per four-person family in the town is not significantly different from the national average. (alpha = 5%)

c.       For which values of the sample mean (i.e., average weekly grocery bill) would you reject the null hypothesis at the 1% significance level? For which values of the sample mean would you reject the null hypothesis at the 10% level?

d.      Repeat a and b to test the hypothesis that the average weekly grocery bill per four-person family in the town is significantly higher than the national average. (alpha = 5%)

 Subject Mathematics Due By (Pacific Time) 08/16/2013 12:00 pm
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