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Elden [556K]
3 years ago
6

A teacher finds that final grades in the statistics department are distributed​ as: A,​ 25%; B,​ 25%; C,​ 40%; D,​ 5%; F,​ 5%. A

t 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
Mathematics
2 answers:
kifflom [539]3 years ago
6 0
The answer to this is d
Volgvan3 years ago
5 0

Answer:5.25

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Liula [17]

Answer:

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Step-by-step explanation:

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