A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements are centimeters on a pain scale before and after hypnosis. Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval for the mean of the "before - after" differences. Does hypnotism appear to be effective in reducing pain? Before 11.6 7.3 5.9 10.1 7.6 9.0 4.1 1.9 After 6.9 2.5 7.1 8.8 8.9 6.7 3.3 2.7 Construct a 95% confidence interval for the mean of the "before - after" differences. < Ha < (Round to two decimal places as needed.) Does hypnotism appear to be effective in reducing pain? O A. No, because the confidence interval includes zero. O B. Yes, because the confidence interval does not include and is entirely greater than zero. O C. Yes, because the confidence interval includes zero. O D. No, because the confidence interval does not include and is entirely greater than zero.
A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements are centimeters on a pain scale before and after hypnosis. Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval for the mean of the "before - after" differences. Does hypnotism appear to be effective in reducing pain? Before 11.6 7.3 5.9 10.1 7.6 9.0 4.1 1.9 After 6.9 2.5 7.1 8.8 8.9 6.7 3.3 2.7 Construct a 95% confidence interval for the mean of the "before - after" differences. < Ha < (Round to two decimal places as needed.) Does hypnotism appear to be effective in reducing pain? O A. No, because the confidence interval includes zero. O B. Yes, because the confidence interval does not include and is entirely greater than zero. O C. Yes, because the confidence interval includes zero. O D. No, because the confidence interval does not include and is entirely greater than zero.
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![A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements are centimeters on a pain scale before and after hypnosis.
Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately normal. Construct a 95% confidence
interval for the mean of the "before - after" differences. Does hypnotism appear to be effective in reducing pain?
Before
11.6
7.3
5.9
10.1
7.6
9.0
4.1
1.9
After
6.9
2.5
7.1
8.8
8.9
6.7
3.3
2.7
Construct a 95% confidence interval for the mean of the "before - after" differences.
< Ha < (Round to two decimal places as needed.)
Does hypnotism appear to be effective in reducing pain?
O A. No, because the confidence interval includes zero.
O B. Yes, because the confidence interval does not include and is entirely greater than zero.
O C. Yes, because the confidence interval includes zero.
O D. No, because the confidence interval does not include and is entirely greater than zero.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F765f411e-12fc-4615-984c-f36fafa3668b%2Fc0b627fd-1214-4f76-9b41-c0575a2ddf28%2Fyv78lck_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements are centimeters on a pain scale before and after hypnosis.
Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately normal. Construct a 95% confidence
interval for the mean of the "before - after" differences. Does hypnotism appear to be effective in reducing pain?
Before
11.6
7.3
5.9
10.1
7.6
9.0
4.1
1.9
After
6.9
2.5
7.1
8.8
8.9
6.7
3.3
2.7
Construct a 95% confidence interval for the mean of the "before - after" differences.
< Ha < (Round to two decimal places as needed.)
Does hypnotism appear to be effective in reducing pain?
O A. No, because the confidence interval includes zero.
O B. Yes, because the confidence interval does not include and is entirely greater than zero.
O C. Yes, because the confidence interval includes zero.
O D. No, because the confidence interval does not include and is entirely greater than zero.
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