Question

One year, the mean age of an inmate on death row was 40.7 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then. She randomly selects 32 death-row inmates and finds that their mean age is 39.6, with a standard deviation of 8.4. Construct a 95% confidence interval about the mean age. What does the interval imply?

Name: one year the mean age of an inmate on death row was 407 years a sociologist wondered whether the mean age of a death row inmate has changed since then she randomly selects 32 death row inmat 58355
Uploaded: 2023-08-23T05:32:37-08:00
Duration: 1 min 39 s
Channel: Qudsiya Anis
Description: one year the mean age of an inmate on death row was 407 years a sociologist wondered whether the mean age of a death row inmate has changed since then she randomly selects 32 death row inmat 58355

          One year, the mean age of an inmate on death row was 40.7 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then. She randomly selects 32 death-row inmates and finds that their mean age is 39.6, with a standard deviation of 8.4. Construct a 95% confidence interval about the mean age. What does the interval imply?

Added by Janet D.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Qudsiya Anis

08/23/2023

Step 1

Sample mean (x̄) = 39.6 Sample size (n) = 32 Sample standard deviation (s) = 8.4 Show more…

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One year, the mean age of an inmate on death row was 40.7 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then. She randomly selects 32 death-row inmates and finds that their mean age is 39.6, with a standard deviation of 8.4. Construct a 95% confidence interval about the mean age. What does the interval imply?