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z-scores wil nave a mcan ofll and a standard deviation of a. 0;1 b. 60;1 c. 0: 8 d. 60: 8 (unchanged) For a population with μ-100 and σ a. 85 b. 95 13. 20, what is the X value coresponding to z--0.75? C. 105 d. 115 Last week, your friend tells you that she had exams in math and in Spanish. On the math exam, the mean was μ--30 with σ# 10, and h 8, and your friend had a score of X -68. For which class should your friend expect the better grade? a. Math b. Spanish 14. 60 with On the Spanish exam. the mean was μ The grades should be the same. c.
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This problem is based on the z-score value and comparison of different normal distribution:-shen 20 e. ½ valueAires us o allow us to Compare om Vamaples Not erse 0 Spanish : Qcoseニ c8- 60 -1

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