Asked by dave

A random sample of size 36 is taken from a population with mean 50 and standard deviation 5. Find P( < 51.5).

Answers

Answered by PsyDAG
If this is for distribution of means,

Z = (score-mean)/SEm

SEm = SD/√n

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.
Answered by ryan
.9641
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