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 55 men and 73 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 55 112.3 11.4 1.5 73 118.6 14.3 1.7 90% Cl for mu Men - mu Women (- 10.09, - 2.51) T-Test mu Men = mu Women (vs <) T= - 2.77 P = 0.0032 DF = 125 (a) State the null and alternative hypotheses. Which of the following is correct? O A. Ho: H1 = H2; Hại H1 # H2 B. Ho: H1 = H2; Hạ: H1> H2 O C. Ho: H1 = H2; Hại H1
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 55 men and 73 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 55 112.3 11.4 1.5 73 118.6 14.3 1.7 90% Cl for mu Men - mu Women (- 10.09, - 2.51) T-Test mu Men = mu Women (vs <) T= - 2.77 P = 0.0032 DF = 125 (a) State the null and alternative hypotheses. Which of the following is correct? O A. Ho: H1 = H2; Hại H1 # H2 B. Ho: H1 = H2; Hạ: H1> H2 O C. Ho: H1 = H2; Hại H1
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question

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 55 men
and 73 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
55
112.3
11.4
1.5
73
118.6
14.3
1.7
90% Cl for mu Men
- mu Women
(- 10.09, - 2.51)
T-Test mu Men = mu Women (vs <)
T= - 2.77 P = 0.0032 DF = 125
(a) State the null and alternative hypotheses. Which of the following is correct?
O A. Ho: H1 = H2; Hại H1 # H2
B. Ho: H1 = H2; Hạ: H1> H2
O C. Ho: H1 = H2; Hại H1 <H2
(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 =
State the researcher's conclusion. Which of the following is correct?
O A. 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
B. Fail to reject Ho, there is sufficient evidence to conclude that the mean step pulse of men was less than the mean step pulse of women
O C. Reject Ho, there is sufficient evidence to conclude that the mean step pulse of men was less than the mean step pulse of women
O D. Fail to 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
(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.)
Interpret this result.
O A. We are 90% confident that the means are in the confidence interval.
O B. 90% percent of the time the mean difference is in the confidence interval.
O C. 90% percent of the time the means are in the confidence interval.
O D. We are 90% confident that the mean difference is in the confidence interval.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Recommended textbooks for you

MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc

Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning

MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc

Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning

Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON

The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman

Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman