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.
- 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
