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Do the data indicate a significant change in the grade

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Question: A professor in the psychology department would like to determine whether there has been a significant change in grading practices over the years. It is known that the overall grade distribution for the department in 1985 had 14% As, 26% Bs, 31% Cs, 19% Ds, and 10% Fs. A sample of n = 200 psychology students from last semester produced the following grade distribution:

A B C D F

32 61 64 31 12

Do the data indicate a significant change in the grade distribution? Test at the .05 level of significance.

Reference no: EM13586018

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