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Assume that blood pressure readings are normally distributed with a mean of 123 and a standard deviation of
9.6. If 144 people are randomly selected, find the probability that their mean blood pressure will be less than 125
13 years ago

Answers

PsyDAG
Z = (mean1 - mean2)/SEm

SEm = SD/√n

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.
13 years ago
Anonymous
0.9938
13 years ago

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