Homework Help is Here – Start Your Trial Now!
Math
Statistics
Leech therapy is used in traditional medicine for treating localized pain. In a double blind experiment on 50 patients with osteoarthritis of th knee, half are randomly selected to receive injections of leech saliva while the rest receive a placebo. Pain levels 7 days later among those receiving the saliva shows a mean of 19.5 while pain levels among those receiving the placebo show a mean of 25.6 with higher numbers indicating more pain. With Ha: µ1 µ2, the t test statistic computed is -2.200 with p-value=0.0326. Which of the following is a correct conclusion? O a. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.0 significance level and at 0.03 level. O b. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.0 significance level. O c. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.1 significance level, but not at the 0.05 level. O d. After 7 days, the mean pain level with the leech treatment is not significantly lower than the mean pain level with the placebo at the 0.10 significance level. O e. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.0 significance level, but not at the 0.03 level.

Leech therapy is used in traditional medicine for treating localized pain. In a double blind experiment on 50 patients with osteoarthritis of th knee, half are randomly selected to receive injections of leech saliva while the rest receive a placebo. Pain levels 7 days later among those receiving the saliva shows a mean of 19.5 while pain levels among those receiving the placebo show a mean of 25.6 with higher numbers indicating more pain. With Ha: µ1 µ2, the t test statistic computed is -2.200 with p-value=0.0326. Which of the following is a correct conclusion? O a. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.0 significance level and at 0.03 level. O b. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.0 significance level. O c. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.1 significance level, but not at the 0.05 level. O d. After 7 days, the mean pain level with the leech treatment is not significantly lower than the mean pain level with the placebo at the 0.10 significance level. O e. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.0 significance level, but not at the 0.03 level.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
Leech therapy is used in traditional medicine for treating localized pain. In a double blind experiment on 50 patients with osteoarthritis of the knee, half are randomly selected to receive injections of leech saliva while the rest receive a placebo. Pain levels 7 days later among those receiving the saliva shows a mean of 19.5 while pain levels among those receiving the placebo show a mean of 25.6 with higher numbers indicating more pain. With Ha: µ1±µ2, the t test statistic computed is -2.200 with p-value=0.0326. Which of the following is a correct conclusion? O a. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.05 significance level and at 0.03 level. O b. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.01 significance level. O c. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.10 significance level, but not at the 0.05 level. O d. After 7 days, the mean pain level with the leech treatment is not significantly lower than the mean pain level with the placebo at the 0.10 significance level. O e. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.05 significance level, but not at the 0.03 level.
Transcribed Image Text:Leech therapy is used in traditional medicine for treating localized pain. In a double blind experiment on 50 patients with osteoarthritis of the knee, half are randomly selected to receive injections of leech saliva while the rest receive a placebo. Pain levels 7 days later among those receiving the saliva shows a mean of 19.5 while pain levels among those receiving the placebo show a mean of 25.6 with higher numbers indicating more pain. With Ha: µ1±µ2, the t test statistic computed is -2.200 with p-value=0.0326. Which of the following is a correct conclusion? O a. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.05 significance level and at 0.03 level. O b. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.01 significance level. O c. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.10 significance level, but not at the 0.05 level. O d. After 7 days, the mean pain level with the leech treatment is not significantly lower than the mean pain level with the placebo at the 0.10 significance level. O e. After 7 days, the mean pain level with the leech treatment is significantly lower than the mean pain level with the placebo at the 0.05 significance level, but not at the 0.03 level.
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
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
SEE MORE TEXTBOOKS