Several years ago, the reported mean age of an inmate on death row was

38.7 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then.

He randomly selects 37 death-row inmates and finds that their mean age is 36.9 with a standard deviation of 8.8

Construct a 90% confidence interval about the mean age of death row inmates. What does the interval imply?

Choose the correct hypotheses.

Upper H 0

μ = 38.7

(I've edited this to remove the repeated numbers. I hope it is now clearer, and that I haven't changed the meaning of anything in doing so! Alan)

sharonnact12 Nov 21, 2018

#1**0 **

Please restate your question with proper wording. I cannot understand your question.

- PM

PartialMathematician Nov 22, 2018