Question

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

​"beforeminus

​after"

differences. Does hypnotism appear to be effective in reducing​ pain?

Before	9.2

5.6

11.5

10.9

12.2

5.0

2.6

2.4

	After	6.1

2.8

7.8

8.3

8.4

6.4

3.1

2.3

Construct a​ 95% confidence interval for the mean of the

​"beforeminus

​after"

differences.

nothing

less thanmu Subscript dless thannothing

​(Round to two decimal places as​ needed.)

Does hypnotism appear to be effective in reducing​ pain?

A.

No

​,

because the confidence interval

does not include zero and is entirely greater

than zero.

B.

Yes

​,

because the confidence interval

does not include zero and is entirely greater

than zero.

C.

No

​,

because the confidence interval

includes zero.

nothing

D.

Yes

​,

because the confidence interval

includes zero.

nothing

Click to select your answer(s).

Answer 1

Answer:-

Thanks dear student