Question

The average student loan debt for college graduates is $25,800.
Suppose that that distribution is normal and that the standard
deviation is $11,800. Let X = the student loan debt of a randomly
selected college graduate. Round all probabilities to 4 decimal
places and all dollar answers to the nearest dollar.

a. What is the distribution of X? X ~ N ( _ , _ )

b Find the probability that the college graduate has between
$31,750 and $50,200 in student loan debt.

c. The middle 30% of college graduates' loan debt lies between what
two numbers?

Low: $ _

High: $ _

Answer #1

Answer:-

(b) 0.2893

(c) Low: $23440

High: $32054

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loan debt of a U.S. college student at the end of 4 years of
college is estimated to be about $23,800. You take a random sample
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construct a 99% confidence interval for the mean debt for all
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(a) What is the point estimate for the...

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