A researcher determines that students are active about 60 ± 12 (M ± SD) min/day. Assuming these data are normally distributed, what is the z score for students being active 48 min/week?
A. 1.0
B. –1.0
C. 0
D. There is not enough information to answer this question.
Ans: B
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Fill in the blank with correct word.
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