A clinical researcher performs a clinical trial on 12 patients to determine whether a drug treatment has an effect on serum glucose. The sample mean glucose of the patients before and after the treatment are summarized in the following table. The sample standard deviation of the differences was 8. Sample mean glucose (mg/dL)
A clinical researcher performs a clinical trial on 12 patients to determine whether a drug treatment has an effect on serum glucose. The sample mean glucose of the patients before and after the treatment are summarized in the following table. The sample standard deviation of the differences was 8. Sample mean glucose (mg/dL)
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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![A clinical researcher performs a clinical trial on 12 patients to determine whether a drug
treatment has an effect on serum glucose. The sample mean glucose of the patients
before and after the treatment are summarized in the following table. The sample
standard deviation of the differences was 8.
Sample mean
glucose (mg/dL)
Before treatment
96
After treatment
91
What type of hypothesis test should be performed? Select
Select
Left-tailed z-test
Paired t-test
Two-tailed z-test
Unpaired t-test
What is the test statistic?
What is the number of degrees of freedom?
Does sufficient evidence exist to support the claim that the drug treatment has an effect
on serum glucose at the a = 0.01 significance level?
>](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0bd5c466-4067-47de-aefa-e4955ebdfa80%2Fb8622a35-1f30-4c4d-a37b-f2e450a9ed50%2F52o9icu_processed.png&w=3840&q=75)
Transcribed Image Text:A clinical researcher performs a clinical trial on 12 patients to determine whether a drug
treatment has an effect on serum glucose. The sample mean glucose of the patients
before and after the treatment are summarized in the following table. The sample
standard deviation of the differences was 8.
Sample mean
glucose (mg/dL)
Before treatment
96
After treatment
91
What type of hypothesis test should be performed? Select
Select
Left-tailed z-test
Paired t-test
Two-tailed z-test
Unpaired t-test
What is the test statistic?
What is the number of degrees of freedom?
Does sufficient evidence exist to support the claim that the drug treatment has an effect
on serum glucose at the a = 0.01 significance level?
>
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