Question

i need this quick please

Matched Pairs 046e A study was conducted to measure the effectiveness of hypnotism in reducing pain. The m 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 a46 95% confidence Interval for the mean of the â"before-ae-after differences. Does hypnotism appear to be effective in reducingå 92 9.3 8.6 Before After 4.0 2.5 11.3 8.6 6.3 3.9 | In thisée example, μd is the mean value of the differences d for the population of all pairs ofde data, where each individual difference d is defined as the difference in the measurements in centimeters on a pain scale before and after hypnosis. What is the 95% confidence interval for the mean of the åE/ before-â€after' differences? Answer using interval notation. (Round to two decimal places asãe needed.)

Answer 1

intez val for the papulahian meen diffeente berween be fore Aftc hypmosis. Be orc Aftae duffezente (di-a) (di-a)2 6.3 5 4 0 2 5 1 4 16 G 3 .4 1 3 6 3,6 6,1 8 3 3.9 2 6 6 o 3 6 25 5 Tolal 12.g& 2.5 ら To(3 3 7 12.98 -2 1633 47

S d 72. In t crih cd value y-to-015, 6 2-1, 8 N7 1:9-365 [is-13753 , l.gtト3763) [09243.3 2P57 2.65丿 2 65 CO 52, 3 28 Since the eo mh'dence İnteerol doesnot ten tani Zeno, have suff ident evidence to claim thaf hypnotism appe in rduans paun