31) An anatomy teacher hypothesizes that the final grades in her class are distributed as 10% A's, 23% B's, 45% C's, 14 % D's, and 8% F's. At the end of the semester, she has the 31) following grades. D F C B 8 4 14 22 6 Find the critical value. Use a = 0.05. B) 9.488 C) 9.236 D) 11.070 A) 7.779
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