Jump to level 1 A clinical researcher performs a clinical trial on 14 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. Before treatment Sample mean glucose (mg/dL) 81 After treatment 75 What is the test statistic? Ex: 0.123 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 number of degrees of freedom? Ex: 25 Does sufficient evidence exist to support the claim that the drug treatment has an effect on serum glucose at the a = 0.05 significance level? Select 3
Jump to level 1 A clinical researcher performs a clinical trial on 14 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. Before treatment Sample mean glucose (mg/dL) 81 After treatment 75 What is the test statistic? Ex: 0.123 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 number of degrees of freedom? Ex: 25 Does sufficient evidence exist to support the claim that the drug treatment has an effect on serum glucose at the a = 0.05 significance level? Select 3
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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zy Section 5.4- QNT/275T: Statistics x +
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for Decision Making home >
nce between two population means
4.1: Hypothesis test for the difference between two population means.
Jump to level 1
A clinical researcher performs a clinical trial on 14 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.
Before treatment
What is the test statistic? Ex: 0.123
Check
What type of hypothesis test should be performed? Select
Select
Left-tailed z-test
Paired t-test
Two-tailed z-test
Unpaired t-test
Next
After treatment 75
Sample mean
glucose (mg/dL)
What is the number of degrees of freedom? Ex: 25
Does sufficient evidence exist to support the claim that the drug treatment has an effect
on serum glucose at the a = 0.05 significance level? Select
81
MESA 81101
2
hp
3
I
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