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  3. read each problem carefully and clearly show all w

Read each problem carefully and clearly show all work. Indicate calculator functions used (ie T-Test, 2-SampTTest, etc) as...

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Statistics

Read each problem carefully andclearly show all work.

Indicate calculator functions used (ie T-Test,2-SampTTest, etc) as well as calculator entries

State yourconclusions in terms of the context of theproblem.

  1. Does the time of day that a class meets affect exam grades?Exam grades for an 8am statistics class and a 3pm statistics classtaught by the same professor were compared. The summary data aregiven in the table below. Assuming both populations areapproximately normally distributed, is there a difference betweenthe two classes? Use a significance level of 5%.

  8am Class

3pm Class

    =  23

       = 27

          =81

       =  85

         =  8.6

       =  11.2

      Clearly label the 6step approach

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