A sociology professor assigns letter grades on a test according to the following scheme. A: Top 6% of scores B: Scores below the top 6% and above the bottom 64% C: Scores below the top 36% and above the bottom 15% 38. D: Scores below the top 85% and above the bottom 6% F: Bottom 6% of scores Scores on the test are normally distributed with a mean of 67.7 and a standard deviation of 9.3. Find the minimum score required for an A grade. Round your answer to the nearest whole number, if necessary.

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A sociology professor assigns letter grades on a test according to the following scheme.
A: Top 6% of scores
B: Scores below the top 6% and above the bottom 64%
C: Scores below the top 36% and above the bottom 15%
38.
D: Scores below the top 85% and above the bottom 6%
F: Bottom 6% of scores
Scores on the test are normally distributed with a mean of 67.7 and a standard
deviation of 9.3. Find the minimum score required for an A grade. Round your answer
to the nearest whole number, if necessary.
Transcribed Image Text:A sociology professor assigns letter grades on a test according to the following scheme. A: Top 6% of scores B: Scores below the top 6% and above the bottom 64% C: Scores below the top 36% and above the bottom 15% 38. D: Scores below the top 85% and above the bottom 6% F: Bottom 6% of scores Scores on the test are normally distributed with a mean of 67.7 and a standard deviation of 9.3. Find the minimum score required for an A grade. Round your answer to the nearest whole number, if necessary.
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