Analysis of a random sample of 250 Illinois nurses produced a confidence interval for the mean annual salary of (Nurse Salary)
A) About of Illinois nurses earn between and .
B) We are confident that the average nurse salary in the U.S. is between and .
C) If we took many random samples of Illinois nurses, about of them would produce this confidence interval.
D) We are confident that the interval from to contains the true mean of all Illinois nurses.
E) About of the nurses surveyed earn between and .
Correct Answer:
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