Also:
P-Value =
What is the conclusion for the test?
Homework Answers
F = (1.24^2/0.92^2) = 1.82
This is right tailed test
p-value = 0.1005
As p-value > 0.05, failed to reject H0
there is not suffficient evidence to conclude that the Sham's
variance is greater than Magnet's variance
Add Answer to:
Also:
P-Value =
What is the conclusion for the test?
% 9.4.11-T Question Help A study...
Question Help A study was conducted to determine whether magnets were effective in treating pain. The...
Question Help A study was conducted to determine whether magnets were effective in treating pain. The values the visual analog scale. Assume that both samples are s n 1.26 20 0.42 t m ees Sham ple random samples from populations having normal distributions. Use a 0.05 0.92 0.49 Magnet 20 significance level to test the claim that those given a sham treatment have pain reductions that vary more than the pain reductions for those treated with magnets. What are the...
B.) The Test statistic is? C.) The P Value is? D.)State the conclusion for the test...
B.) The Test statistic is?
C.) The P Value is?
D.)State the conclusion for the test
E.) Construct a confidence interval suitable for testing the
claim that those treated with magnets have a greater mean reduction
in pain than those given a sham treatment.
____< μ1−μ2 < ______
(Round to three decimal places as needed.)
Treatment 1 Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the...
This Question: 1 pt 20 of 35 (12 complete) This Test: 104 pts possible Question Help...
This Question: 1 pt 20 of 35 (12 complete) This Test: 104 pts possible Question Help Treatment Sham determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) group and the sham (or placebo) group. The samples selected from nomally distributed populations, and do not assume that the population Researchers conducted a study 17 17 standard devlations are equal Comolete narts (al and (b) helow Use a 0 05...
A. B. 2. Identify the test statistic. (Round to two decimal places as needed.) 3. Use...
A.
B.
2. Identify the test statistic. (Round to two decimal places as
needed.)
3. Use technology to identify the P-value. (Round to three
decimal places as needed.)
4. What is the conclusion for this hypothesis test?
A. Fail to reject H 0. There is insufficient evidence to support
the claim that the treatment group has errors that vary
significantly more than the errors of the placebo group.
B. Reject H 0. There is insufficient evidence to support the claim...
Treatment Sham Researchers conducted a study to determine whether magnets are effective in treating back pain. The...
Treatment Sham Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) group and the sham (or placebo) group. The results are a measure of reduction in back pain. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.05...
חן х Researchers conducted a study to determine whether magnets are effective in treating Treatment Sham...
חן х Researchers conducted a study to determine whether magnets are effective in treating Treatment Sham back pain. The results are shown in the table for the treatment (with magnets) group and P the sham (or placebo) group. The results are a measure of reduction in back pain. 11 12 Assume that the two samples are independent simple random samples selected from 12 12 normally distributed populations, and do not assume that the population standard 0.54 0.45 deviations are equal....
In a study designed to test the effectiveness of magnets for treating back pain, 40 40 patients were given a treatment with magnets and also a sham treatment without magnets. Pain was measured using...
In a study designed to test the effectiveness of magnets for treating back pain, 40 40 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 40 patients had pain scores with a mean of 6.0 and a standard deviation of 2.2. After being given the sham treatments, the 40 patients had pain scores with a...
A. B. 2. The test statistic,is ______ (Round to two decimal places as needed.) 3. The P-value is ______ (Round t...
A.
B.
2. The test statistic,is ______
(Round to two decimal places as needed.)
3. The P-value is ______
(Round to three decimal places as needed.)
4. State the conclusion for the test.
________________ the null hypothesis. There ______ sufficient
evidence to support the claim that those treated with magnets have
a greater mean reduction in pain than those given a sham
treatment.
5. Is it valid to argue that magnets might appear to be
effective if the sample sizes...
Treatment Researchers conducted a study to determine whether magrets are effective in treating back pain. The...
Treatment Researchers conducted a study to determine whether magrets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) group and the sham (or placebo) group. The results are a measure of reduction in back pain. Assume that the two samples are independent simple random samples selected from normally debuted populations, and do not assume that the population standard deviations are equal Complete parts (a) and (b) below. Sham 2 0.53 0.73...
In a study designed to test the effectiveness of magnets for treating back pain, 40 patients...
In a study designed to test the effectiveness of magnets for treating back pain, 40 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 40 patients had pain scores with a mean of 10.0 10.0 and a standard deviation of 2.2. After being given the sham treatments, the 40 patients had pain scores with a...
Question Help A study was conducted to determine whether magnets were effective in treating pain. The values the visual analog scale. Assume that both samples are s n 1.26 20 0.42 t m ees Sham ple random samples from populations having normal distributions. Use a 0.05 0.92 0.49 Magnet 20 significance level to test the claim that those given a sham treatment have pain reductions that vary more than the pain reductions for those treated with magnets. What are the...
B.) The Test statistic is?
C.) The P Value is?
D.)State the conclusion for the test
E.) Construct a confidence interval suitable for testing the
claim that those treated with magnets have a greater mean reduction
in pain than those given a sham treatment.
____< μ1−μ2 < ______
(Round to three decimal places as needed.)
Treatment 1 Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the...
This Question: 1 pt 20 of 35 (12 complete) This Test: 104 pts possible Question Help Treatment Sham determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) group and the sham (or placebo) group. The samples selected from nomally distributed populations, and do not assume that the population Researchers conducted a study 17 17 standard devlations are equal Comolete narts (al and (b) helow Use a 0 05...
A.
B.
2. Identify the test statistic. (Round to two decimal places as
needed.)
3. Use technology to identify the P-value. (Round to three
decimal places as needed.)
4. What is the conclusion for this hypothesis test?
A. Fail to reject H 0. There is insufficient evidence to support
the claim that the treatment group has errors that vary
significantly more than the errors of the placebo group.
B. Reject H 0. There is insufficient evidence to support the claim...
Treatment Sham Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) group and the sham (or placebo) group. The results are a measure of reduction in back pain. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.05...
חן х Researchers conducted a study to determine whether magnets are effective in treating Treatment Sham back pain. The results are shown in the table for the treatment (with magnets) group and P the sham (or placebo) group. The results are a measure of reduction in back pain. 11 12 Assume that the two samples are independent simple random samples selected from 12 12 normally distributed populations, and do not assume that the population standard 0.54 0.45 deviations are equal....
A.
B.
2. The test statistic,is ______
(Round to two decimal places as needed.)
3. The P-value is ______
(Round to three decimal places as needed.)
4. State the conclusion for the test.
________________ the null hypothesis. There ______ sufficient
evidence to support the claim that those treated with magnets have
a greater mean reduction in pain than those given a sham
treatment.
5. Is it valid to argue that magnets might appear to be
effective if the sample sizes...
Treatment Researchers conducted a study to determine whether magrets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) group and the sham (or placebo) group. The results are a measure of reduction in back pain. Assume that the two samples are independent simple random samples selected from normally debuted populations, and do not assume that the population standard deviations are equal Complete parts (a) and (b) below. Sham 2 0.53 0.73...
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