SOLUTION: A normal population has a mean of 15.0 and a standard deviation of 3.0.
a. Compute the z value associated with 13.0.
b. What proportion of the population is less than 13.0?
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-> SOLUTION: A normal population has a mean of 15.0 and a standard deviation of 3.0.
a. Compute the z value associated with 13.0.
b. What proportion of the population is less than 13.0?
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You can put this solution on YOUR website! A normal population has a mean of 15.0 and a standard deviation of 3.0.
a. Compute the z value associated with 13.0.
z(13) = (13-15)/3 = -2/3
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b. What proportion of the population is less than 13.0?
P(x < 13) = P (z < -2/3) = 0.2525...
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Cheers,
Stan H.
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