SOLUTION: scores from a test have a mean of 64.6. the distribution sample means for size 100 is normal with a mean of 64.6 and a standard deviatin of 1.9. suppose you take a sample of size 1

Algebra ->  Probability-and-statistics -> SOLUTION: scores from a test have a mean of 64.6. the distribution sample means for size 100 is normal with a mean of 64.6 and a standard deviatin of 1.9. suppose you take a sample of size 1      Log On


   

Question 613297: scores from a test have a mean of 64.6. the distribution sample means for size 100 is normal with a mean of 64.6 and a standard deviatin of 1.9. suppose you take a sample of size 100 to test scores and find the mean is 63. what is the z-score to this sample mean?
I have: z(100)=(100-63)/10=37.100.100
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
scores from a test have a mean of 64.6. the distribution sample means for size 100 is normal with a mean of 64.6 and a standard deviatin of 1.9. suppose you take a sample of size 100 to test scores and find the mean is 63. what is the z-score to this sample mean?
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z(63) = (63-64.6)/1.9 = -0.8421
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Cheers,
Stan H.