A study wanted to determine if a fitness program was effective. The subjects were 30 overweight adults aged 30 to 45 with a high Body Mass Index. Their weights were recorded before and after the program for each subject. It was determined from the sample that the mean of the differences is 1.404 and that the standard deviation of the differences is 6.243. A researcher believes that the program makes a difference in the weight of the participants. Is the researcher right? Use the rejection region approach and a 5% level of significance. State the null and alternative hypotheses: Calculate the test statistic: | Rejection Rule: The final conclusion as a reject/fail to reject the null hypothesis: The final conclusion in the words of the problem.
A study wanted to determine if a fitness program was effective. The subjects were 30 overweight adults aged 30 to 45 with a high Body Mass Index. Their weights were recorded before and after the program for each subject. It was determined from the sample that the mean of the differences is 1.404 and that the standard deviation of the differences is 6.243. A researcher believes that the program makes a difference in the weight of the participants. Is the researcher right? Use the rejection region approach and a 5% level of significance. State the null and alternative hypotheses: Calculate the test statistic: | Rejection Rule: The final conclusion as a reject/fail to reject the null hypothesis: The final conclusion in the words of the problem.
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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![A study wanted to determine if a fitness program was effective. The subjects were 30 overweight adults
aged 30 to 45 with a high Body Mass Index. Their weights were recorded before and after the program
for each subject. It was determined from the sample that the mean of the differences is 1.404 and that
the standard deviation of the differences is 6.243. A researcher believes that the program makes a
difference in the weight of the participants. Is the researcher right? Use the rejection region approach
and a 5% level of significance.
State the null and alternative hypotheses:
Calculate the test statistic:
Rejection Rule:
The final conclusion as a reject/fail to reject the null hypothesis:
The final conclusion in the words of the problem.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff57938f6-b168-43f3-983f-e97b87ed20f4%2F668a84b2-9aea-46cf-9825-1a2ca30946fb%2Fopeywlk_processed.png&w=3840&q=75)
Transcribed Image Text:A study wanted to determine if a fitness program was effective. The subjects were 30 overweight adults
aged 30 to 45 with a high Body Mass Index. Their weights were recorded before and after the program
for each subject. It was determined from the sample that the mean of the differences is 1.404 and that
the standard deviation of the differences is 6.243. A researcher believes that the program makes a
difference in the weight of the participants. Is the researcher right? Use the rejection region approach
and a 5% level of significance.
State the null and alternative hypotheses:
Calculate the test statistic:
Rejection Rule:
The final conclusion as a reject/fail to reject the null hypothesis:
The final conclusion in the words of the problem.
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