Construct a 95% confidence interval for the mean of the "before−after" differences. (Round to two decimal places as need

[answerhappygod]

Construct a 95% confidence interval for the mean of the
"before−after"
differences.
(Round to two decimal places as needed.)
Part 2
Does hypnotism appear to be effective in reducing pain?
A.
No,
because the confidence interval
includes zero.
B.
Yes,
because the confidence interval
does not include zero and is entirely greater
than zero.
C.
No,
because the confidence interval
does not include zero and is entirely greater
than zero.
D.
Yes,
because the confidence interval
includes zero.
A study was conducted to measure the effectiveness of producing the moment we contiers on a before and a tonos Automata random samples and that the differences have a distribution is nyomat Contacta 95confidence in the most concert in roducing an Before 50 70 50 After 0 20 70 22 104 Constructs cofound for the men of the force and I had decimal places en nooded) Does to appear to be even reducing an? OA Nobecause the concerns 6 Yes cause the contentarvas not include and is retro OC. No, because the con concentrat does not include and grow OD Yes boise the confidence interval de