a Starting salaries of 125 college graduates who have taken a statistics course have a mean of $42,364. Suppose that the population standar deviation o is $8,646. Using a 0.93 degree of confidence, find both of the following: A. The margin of error E B. The confidence interval for the mean : Hint: If you have the population standard deviation (which you do in this case!) you can use the normal distribution instead of the T distribution.

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Starting salaries of 125 college graduates who have taken a statistics course have a mean of $42,364. Suppose that the population standard
deviation o is $8,646.
Using a 0.93 degree of confidence, find both of the following:
A. The margin of error E
B. The confidence interval for the mean l:
Hint: If
you
have the population standard deviation (which you do in this case!) you can use the normal distribution instead of the I distribution.
Transcribed Image Text:Starting salaries of 125 college graduates who have taken a statistics course have a mean of $42,364. Suppose that the population standard deviation o is $8,646. Using a 0.93 degree of confidence, find both of the following: A. The margin of error E B. The confidence interval for the mean l: Hint: If you have the population standard deviation (which you do in this case!) you can use the normal distribution instead of the I distribution.
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