18. The following are scores on IQ tests of a random sample of 18 students at a...

Question:

18. The following are scores on IQ tests of a random sample of 18 students at a large eastern university.

130, 122, 119, 142, 136, 127, 120, 152, 141, 132, 127, 118, 150, 141, 133, 137, 129, 142

(a) Construct a 95 percent confidence interval estimate of the average IQ score of all students at the university.

(b) Construct a 95 percent lower confidence interval estimate.

(c) Construct a 95 percent upper confidence interval estimate.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Question Posted: