1or 2 a. Construct the 95% confidence interval estimate of the mean pain score for patients given the magnet treatment. b. Construct the 95% confidence interval estimate of the mean pain score for patients given the sham treatment. C. Compare the results. Does the treatment with magnets appear to be effective? O A. Since the confidence intervals do not overlap, it appears that the magnet treatments are more effective than the sham treatments. O B. Since the confidence intervals overlap, it appears that the magnet treatments are no more effective than the sham treatments. D C. Since the confidence intervals do not overlap, it appears that the magnet treatments are no more effective than the sham treatments. O D. Since the confidence intervals overlap, it appears that the magnet treatments are less effective than the sham treatments.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
icon
Related questions
Topic Video
Question
10. In a study designed to test the effectiveness of magnets for treating back pain, 35
patients were given a treatment with magnets and also a sham treatment without
magnets. Pain was measured using a scale from 0 (no pain) to 100 (extreme pain).
After given the magnet treatments, the 35 patients had pain scores with a mean of
11.0 and a standard deviation of 2.6. After being given the sham treatments, the 35
patients had pain scores with a mean 11.3 and a standard deviation of 2.2.
a. Construct the 95% confidence interval estimate of the mean pain score for
patients given the magnet treatment.
b. Construct the 95% confidence interval estimate of the mean pain score for
patients given the sham treatment.
C. Compare the results. Does the treatment with magnets appear to be effective?
O A. Since the confidence intervals do not overlap, it appears that the magnet
treatments are more effective than the sham treatments.
O B. Since the confidence intervals overlap, it appears that the magnet
treatments are no more effective than the sham treatments.
O C. Since the confidence intervals do not overlap, it appears that the magnet
treatments are no more effective than the sham treatments.
O D. Since the confidence intervals overlap, it appears that the magnet
treatments are less effective than the sham treatments.
Transcribed Image Text:10. In a study designed to test the effectiveness of magnets for treating back pain, 35 patients were given a treatment with magnets and also a sham treatment without magnets. Pain was measured using a scale from 0 (no pain) to 100 (extreme pain). After given the magnet treatments, the 35 patients had pain scores with a mean of 11.0 and a standard deviation of 2.6. After being given the sham treatments, the 35 patients had pain scores with a mean 11.3 and a standard deviation of 2.2. a. Construct the 95% confidence interval estimate of the mean pain score for patients given the magnet treatment. b. Construct the 95% confidence interval estimate of the mean pain score for patients given the sham treatment. C. Compare the results. Does the treatment with magnets appear to be effective? O A. Since the confidence intervals do not overlap, it appears that the magnet treatments are more effective than the sham treatments. O B. Since the confidence intervals overlap, it appears that the magnet treatments are no more effective than the sham treatments. O C. Since the confidence intervals do not overlap, it appears that the magnet treatments are no more effective than the sham treatments. O D. Since the confidence intervals overlap, it appears that the magnet treatments are less effective than the sham treatments.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill