eryyoo5549 eryyoo5549
  • 16-02-2018
  • Mathematics
contestada

For a normal population with a mean of µ = 80 and a standard deviation of σ = 10, what is the probability of obtaining a sample mean greater than m = 75 for a sample of n = 25 scores?

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sqdancefan
sqdancefan sqdancefan
  • 19-02-2018
On a TI-83/84 calculator,
.. normalcdf(75, 150, 80, 10/√(25)) = 0.9937903347

About 99.4%
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