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Faculty in the psychology department at APUS consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. How many cups of coffee would an individual at the 25th percentile drink per day?

A. 4

B. 5

C. 6

D. 7
13 years ago

Answers

PsyDAG
Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (.25) related to a Z score. Insert the values into the above equation and solve for the score.
13 years ago

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