Magnet Sham Researchers conducted a study to determine whether magnets can affect 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 H are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Use a 0.05 significance level to test thể claim that those treated with magnets have a different mean reduction in Is In 10 10 0.54 0.45 0.62 1.49 pain than those given a sham treatment. What are the null and alternative hypotheses? O A. Ho: H1<42 H1: H1242 O B. Ho: H1= H2 H1: H1 > H2 O D. Ho: H1= #2 O C. Ho: H1 H2 H1: H1< H2 H1: H1# H2 Upper critical value is: (Round to three decimal places as needed.) Lower critical value is: (Round to three decimal places as needed.)
Magnet Sham Researchers conducted a study to determine whether magnets can affect 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 H are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Use a 0.05 significance level to test thể claim that those treated with magnets have a different mean reduction in Is In 10 10 0.54 0.45 0.62 1.49 pain than those given a sham treatment. What are the null and alternative hypotheses? O A. Ho: H1<42 H1: H1242 O B. Ho: H1= H2 H1: H1 > H2 O D. Ho: H1= #2 O C. Ho: H1 H2 H1: H1< H2 H1: H1# H2 Upper critical value is: (Round to three decimal places as needed.) Lower critical value is: (Round to three decimal places as needed.)
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Instructor-created question
Sham
Magnet
H1
Researchers conducted a study to determine whether magnets can affect 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 H
are independent simple random samples selected from normally distributed populations, and do not assume that the population standard
deviations are equal. Use a 0.05 significance level to test thế claim that those treated with magnets have a different mean reduction in
than those given a sham treatment.
P2
10
10
0.54
0.45
5.
0.62 1.49
pain
What are the null and alternative hypotheses?
O A. Ho: H1<H2
O B. Ho H1= H2
H1 P12H2
H1 1 > H2
O C. Ho H1 H2
O D. Ho: H1= H2
H1 P1 H2
ents
Upper critical value is: (Round to three decimal places as needed.)
Lower critical value is:
(Round to three decimal places as needed.)
cess
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Transcribed Image Text:Question Help
Researchers conducted a study to determine whether magnets can affect 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 u
are independent simple random samples selected from normally distributed populations, and do not assume that the population standard
deviations are equal. Use a 0.05 significance level to test the claim that those treated with magnets have a different mean reduction in
pain than those given a sham treatment.
Magnet
Sham
P2
10
10
0.54
0.45
0.62
1.49
C.
O C. Ho H1#H2
O D. Ho: H1= H2
H1 H1<H2
Upper critical value is:
(Round to three decimal places as needed.)
Lower critical value is:
(Round to three decimal places as needed.)
The test statistic, t, is
(Round to three decimal places as needed.)
ents
Does the sample provide sufficient evidence that the effect of treatment with magnets is different then the effect of treatment with a placebo?
cess
Answer yes or no:
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Cip
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大
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#
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