11/12 What is the 90% confidence interval for the mean difference in pulse rates of men versus women? The lower bound is_. The upper bound is_. Round to two decimal places as needed. should we reject or do not reject this?
11/12 What is the 90% confidence interval for the mean difference in pulse rates of men versus women? The lower bound is_. The upper bound is_. Round to two decimal places as needed. should we reject or do not reject this?
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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11/12
What is the 90% confidence interval for the
should we reject or do not reject this?

Transcribed Image Text:A physical therapist wanted to know whether the mean step pulse of men was less than
the mean step pulse of women. She randomly selected 52 men and 72 women to
participate in the study. Each subject was required to step up and down a 6-inch
platform. The pulse of each subject was then recorded. The following results were
obtained.
Two sample T for Men vs Women
Mean
112.5
118.7
N.
StDev
SE Mean
52
72
90% CI for mu Men- mu Women
Men
Women
11.7
1.6
1.7
14.4
(- 10.11, - 2.29)
T-Test mu Men mu Women (vs <)
T- -2,64 P-0.0047 DF= 120
CA. Ho P1=#2; Ha H1<P2
%3D
O B. Ho H =2; Ha H1 7 H2
%3D
(b) Identify the P-value and state the researcher's conclusion if the level of significance was a = 0.01. What is the P-value?
P-value = 0.0047
Enter your answer in the edit fields and then click Check Answer.

Transcribed Image Text:Heip
A physical therapist wanted to know whether the mean step pulse of men was less than
the mean step pulse of women. She randomly selected 52 men and 72 women to
participate in the study. Each subject was required to step up and down a 6-inch
platform. The pulse of each subject was then recorded. The following results were
obtained.
Two sample T for Men vs Women
Mean
StDev
SE Mean
Men
Women
52
72
90% Cl for mu Men - mu Women
112.5
11.7
1.6
118.7
14.4
1.7
(- 10.11, -2.29)
T-Test mu Men = mu Women (vs <)
T= -2.64 P= 0.0047 DF = 120
OC. Reject Ho, there is not sufficient evidence to conclude that the mean step pulse of men was less than the mean step pulse of women
D. Reject Ho, there is sufficient evidence to conclude that the mean step pulse of men was less than the mean step pulse of women
(c) What is the 90% confidence interval for the mean difference in pulse rates of men versus women?
The lower bound is
The upper bound is
(Round to two decimal places as needed.)
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