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 39.4, with a standard deviation of 8.2. Construct a 95% confidence interval about the mean age. What does the interval imply? Click the icon to view the table of critical t-values. Choose the correct hypotheses. Ho: 40.7 H₁: H 40.7 (Type integers or decimals. Do not round.) Construct a 95% confidence interval about the mean age. With 95% confidence, the mean age of a death row inmate is between years and years. (Round to two decimal places as needed.)
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 39.4, with a standard deviation of 8.2. Construct a 95% confidence interval about the mean age. What does the interval imply? Click the icon to view the table of critical t-values. Choose the correct hypotheses. Ho: 40.7 H₁: H 40.7 (Type integers or decimals. Do not round.) Construct a 95% confidence interval about the mean age. With 95% confidence, the mean age of a death row inmate is between years and years. (Round to two decimal places as needed.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text: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 39.4, with standard deviation of 8.2. Construct a 95% confidence interval about the mean age. What does the interval imply?
Click the icon to view the table of critical t-values.
Choose the correct hypotheses.
Ho
H₁ H #
(Type integers or decimals. Do not round.)
Construct a 95% confidence interval about the mean age.
With 95% confidence, the mean age of a death row inmate is between
40.7
40.7
years and
C
years. (Round to two decimal places as needed.)
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