Social experiment, Part I
A “social experiment” conducted by a TV program questioned what people do when they see a very obviously bruised woman getting picked on by her boyfriend. On two different occasions at the same restaurant, the same couple was depicted. In one scenario the woman was dressed “provocatively” and in the other scenario the woman was dressed “conservatively”. The table below shows how many restaurant diners were present under each scenario, and whether or not they intervened.
Part 1
Which of the following statements explain why the sampling distribution of the difference between the proportions of interventions under provocative and conservative scenarios does not follow an approximately normal distribution.
Social experiment, Part I#
A “social experiment” conducted by a TV program questioned what people do when they see a very obviously bruised woman getting picked on by her boyfriend. On two different occasions at the same restaurant, the same couple was depicted. In one scenario the woman was dressed “provocatively” and in the other scenario the woman was dressed “conservatively”. The table below shows how many restaurant diners were present under each scenario, and whether or not they intervened.
Scenario
Provocative
Conservative
—————
—————
———————————
—————————–
Intervene
Yes
15
17
No
17
13
—————
—————
———————————
—————————–
Total
32
30
Part 1#
Which of the following statements explain why the sampling distribution of the difference between the proportions of interventions under provocative and conservative scenarios does not follow an approximately normal distribution.
Answer Section#
This is not a randomized experiment, and it is unclear whether people would be affected by the behavior of their peers.
Attribution#
Problem is from the OpenIntro Statistics textbook, licensed under the CC-BY 4.0 license.
