Question: Software analysis of the salaries of random sample of 288 Nevada teachers produced the confidence interval shown below. Which conclusion is correct? What wrong with the others?

t-Interval for u: with 90.00% confidence,

38944 < u< 42893

a) if we took many random samples on Nevada teachers, about 9 out of 10 would produce this confidence interval that contained the mean salary of all Nevada teachers.

b) If we took many random samples of Nevada teachers about 9 out of 10 of them would produce a confidence interval that contained the mean salary of all Nevada teachers.

c) About 9 out of 10 Nevada teachers earn between 38,944 and 42, 893.
d) About 9 out of 10 of the teachers surveyed earn between 38,944 and 42,893.
e) We are 90% confident that the average teacher salary in the United States is between 38,944 and 42,983.