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21 July, 04:55

A teacher finds that final grades in the statistics department are distributed as: A, 25%; B, 25%; C, 40%; D, 5%; F, 5%. At the end of a randomly selected semester, the following grades were recorded. Calculate the chi-square test statistic chi squared used to determine if the grade distribution for the department is different than expected. Use alpha equals 0.01.

Grade A B C D F

Number 42 36 60 8 14

(A) 3.41

(B) 5.25

(C) 6.87

(D) 4.82

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Answers (2)
  1. 21 July, 05:26
    0
    The answer to this is d
  2. 21 July, 05:37
    0
    Answer:5.25
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