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QUESTION 12 A teacher would like to estimate the mean grade for her class of 50...

QUESTION 12

  1. A teacher would like to estimate the mean grade for her class of 50 students on the most recent exam. After the first 10 tests are graded (in random order), her sample results are as follows:

    45 60 74 75 79 80 85 86 90 96

    Which of the numbers below represent the point estimate?

    A.

    15.4
    B.

    77.0
    C.

    84.0
    D.

    79.5

Solutions

Expert Solution

The point estimate is = (45 + 60 + 74 + 75 + 79 + 80 + 85 + 86 + 90 + 96)/10 = 77

Option - B is correct.

                                                                                                                                                     

                                                  

                                   

                          

                                              

                                                      

                                   

                                  

milcah answered 4 months ago
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