A teacher figures that final grades in the chemistry department are distributed as: A, 25%; F, 5%. At the end of a randomly selected semester, the following number of grades were recorded. Determine if the grade distribution for the department is different than expected. Use α = 0.01.

Question

A teacher figures that final grades in the chemistry department are distributed as: A, 25%;    F, 5%. At the end of a randomly selected semester, the following number of grades were recorded. Determine if the grade distribution for the department is different than expected. Use α = 0.01.

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The Answer of A teacher figures that final grades in the chemistry department are distributed as: A, 25%;    F, 5%. At the end of a randomly selected semester, the following number of grades were recorded. Determine if the grade distribution for the department is different than expected. Use α = 0.01.

A Teacher Figures That Final Grades in the Chemistry Department