The mean for statistics test scores is 64 and the standard derivation is 7.0. Fo

Question

The mean for statistics test scores is 64 and the standard derivation is 7.0. For the biology test scores, the mean is 23 and the standard deviation is 3.8. The test scores of a student who look both A student (a) Transform each test score to a z-score. (b) Determine on which test the student had a better score. (a) Transform the statistics test score to a z-score. z = (Type an integer or decimal rounded to the nearest hundredth as needed.) Transform the biology test score to a z-score. (Type an integer or decimal rounded to the nearest hundredth as needed.) b) Determine on which test the student had a better score. Choose the correct answer below. On the biology test the student had a better score. The scores on both tests are the same. On the statistics test the student had a better score.

Explanation / Answer

a) Z score of Stats = (78-64)/7 = 2

Z score of Biology = (27-23)/3.8 = 1.05

b) Option C is Correct because of better Z score

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