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.)

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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
Library
Click to select your answer(s) and then click Check Answer.
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Transcribed Image Text:Question Help 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 Library Click to select your answer(s) and then click Check Answer. Clear All Check Answer Options All parts showing ols ip
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:
Library
Click to select your answer(s) and then click Check Answer,
Options
All parts showing
Clear All
Check Answer
ols
Cip
&
大
@
#
%24
%23
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: Library Click to select your answer(s) and then click Check Answer, Options All parts showing Clear All Check Answer ols Cip & 大 @ # %24 %23
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