A normal population has a mean of 75 and a standard deviation of 5.
A normal population has a mean of 75 and a standard deviation of 5. You select a sample of 40.
Compute the probability the sample mean is: (Round z values to 2 decimal places and final answers to 4 decimal places):
a. Less than 74.
Probability =
b. Between 74 and 76.
Probability =
c. Between 76 and 77.
Probability =
d. Greater than 77.
Probability =
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