What are the hypotheses for the​ t-test? Let population 1 be weights before therapy and let population 2 be weights after therapy.     A. H0​: μ1=μ2 Ha​: μ1<μ2 B. H0​: μ1=μ2 Ha​: μ1≠μ2 C. H0​: μ1>μ2 Ha​: μ1<μ2 D. H0​: μ1=μ2 Ha​: μ1>μ2 Part 2 Find the test statistic.   t= ​(Round to two decimal places as​ needed.) Part 3 Find the​ P-value.   The​ P-value is ​(Round to three decimal places as​ needed.) Part 4 What is the conclusion for the hypothesis​ test?   ▼   Do not reject Reject H0​; the data ▼   provide do not provide sufficient evidence at the 1​% significance level that the mean weight ▼   after therapy is greater. before and after therapy differ. before therapy is greater.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
What are the hypotheses for the​ t-test? Let population 1 be weights before therapy and let population 2 be weights after therapy.
 
 
A.
H0​: μ1=μ2
Ha​: μ1<μ2
B.
H0​: μ1=μ2
Ha​: μ1≠μ2
C.
H0​: μ1>μ2
Ha​: μ1<μ2
D.
H0​: μ1=μ2
Ha​: μ1>μ2
Part 2
Find the test statistic.
 
t=
​(Round to two decimal places as​ needed.)
Part 3
Find the​ P-value.
 
The​ P-value is
​(Round to three decimal places as​ needed.)
Part 4
What is the conclusion for the hypothesis​ test?
 
 
Do not reject
Reject
H0​;
the data
 
provide
do not provide
sufficient evidence at the
1​%
significance level that the mean weight
 
after therapy is greater.
before and after therapy differ.
before therapy is greater.
Weights Before and After Therapy
Before After
93.0
89.1
91.7
99.5
82.1
84.7
81.3
85.4
78.4 77.0
86.0
98.4
75.7 75.2
92.8 100.9
72.3
93.2
79.3
73.5
80.4
78.0
82.5
94.2
80.9
92.3
76.4
88.0
82.2
87.6
88.6 91.7
84.7 88.3
Transcribed Image Text:Weights Before and After Therapy Before After 93.0 89.1 91.7 99.5 82.1 84.7 81.3 85.4 78.4 77.0 86.0 98.4 75.7 75.2 92.8 100.9 72.3 93.2 79.3 73.5 80.4 78.0 82.5 94.2 80.9 92.3 76.4 88.0 82.2 87.6 88.6 91.7 84.7 88.3
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman