Would appreciate someone\'s guidance on the following having a hard time with th

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Would appreciate someone's guidance on the following having a hard time with the steps. Thank you and have a good day.

A psychologist is interested in whether hypnosis affects brain dominance. Twelve college students from the freshmen class are randomly sampled for an oxperiment. The experiment has two conditions.which are given on different days. In condition 1, the students are hvpnotized and then given a test.which measures the relative dominance of the right and left hemispheres. The higher the score, the more dominant is the right hemisphere. In condition 2, the same students are given the test again, only this time they are not hypnotized but are in their normal state of consciousness. The following scores are obtained. Student# 1 2 3 4 5 6 7 8 9 101112 Condition 20 16 22 18 23 30 16 19 14 16 17 Condisioes 14 13 17 19 21 22 122 1214152 Question 1: The alternative hypothesis is bypoosis affects brain dominance bypnosis does not affect brain dominance bypposis increases right brain dominance bypoosis does not increase righ brain dominance Question 2: The null hypothesis appropriate for a nondirsctional alternative hypothesis is byanosis does not increase right brain dominance bypposis does not affect brain dominance bypoosis does not increase lett braio dominance bypoosis affeets brain dom inanc Question The obtained probability for the sign test :DS tac),tail i,url 00161 0.0384 0.0192 0.0322

Explanation / Answer

1)
a) hypnosis affects brain dominance
2)
b) hypnosis does not affect brain dominance
3)

Sign confidence interval for median

                             Confidence
                  Achieved    Interval
     N Median Confidence Lower Upper Position
C4 12   2.000      0.8540 2.000 3.000         4
                    0.9500 2.000 4.474       NLI
                    0.9614 2.000 5.000         3

6) option d) is correct

4) c) reject Ho . hypnosis affects brain domiance
5) c) the freshman class

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