The standard deviation of the population of individual adult male weight scores is 25 pounds. A random sample of adult males produces a mean of 180 pounds.
a. Calculate the standard error of the mean.
b. Test the hypothesis, via the z test, that this sample could still be representative of a population whose mean is known to be 170 pounds.

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The Answer of The standard deviation of the population of individual adult male weight scores is 25 pounds. A random sample of adult males produces a mean of 180 pounds.
a. Calculate the standard error of the mean.
b. Test the hypothesis, via the z test, that this sample could still be representative of a population whose mean is known to be 170 pounds.

The Standard Deviation of the Population of Individual Adult Male