In order to compare the means of two populations, independent random samples of 370 observations are selected from each population, with the following results: Sample 1 Sample 2 x⎯⎯⎯1=513 x⎯⎯⎯2=482 s1=190 s2=180

(a) Test the null hypothesis: H0:(µ1−µ2)=0 versus the alternative hypothesis: H1:(µ1−µ2)≠0. Using =0.03, compute the following:

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The great thing about this problem is they give you everything you need to solve it easily. so the expression is: 12h+30w12h+30wand so everywhere you have an “h” you place 66. and everywhere you have a “w” you place 33. then the expression will look like this: 12(66)+30(33)12(66)+30(33)from here you multiply and then add. getting the following of: $785,862hope this