14. A college faculty member thinks that the final grades in her course will be distributed as follows: A - 15%, B- 25%, C-40%, D/F/W - 20%. At the end of the semester, her 162 students have earned 23 A's, 40 B's, 62 C's, 8 D's, 11 F's and 18 W's. Use a Chi-Square Goodness-of-Fit Test at a = 0.10 to test the claim by hand