Question 1:
A social psychologist hypothesized that a factor in juvenile delinquency was the presence or absence of a
strong father-figure in the home. He examined the folders of 100 inmates in the federal reformatory and
found that only 50 of these young men grew up with a strong father-figure in the home. He also examined
the records of 100 randomly selected male college students and found that 70 of them had strong fatherfigures in their boyhood homes. Form your hypotheses, run the appropriate test, and provide a
conclusion.
Question 2:
In an activity wheel, experimental animals were either isolated or put together and maintained on a
restricted feeding schedule. After 25 days, the animals were either alive with stabilized weights or they
were dead. Form your hypotheses, run the appropriate test, and provide a conclusion.
Alive
Dead
Isolated
9
1
Together
8
12
Question 3:
At a busy street corner in a large city, right at the morning rush hour, a psychologist counted the number
of people waiting for the light to change. A graduate student dressed as a homeless man crossed the
street against the light. The psychologist counted the number of people who followed him. When the next
group collected to wait for the light to change, another graduate student, dressed as a well-to-do
businessman, crossed the street against the light, and the psychologist counted the number of people
who followed him. Form your hypotheses, run the appropriate test, and provide a conclusion.
Homeless Man
Businessman
Followed
3
8
Did Not Follow
15
7
Question 4:
7C
Here are some data based on a study by St. Leger, et al. (1978 and described in Howell, 1995). The data
come from 10 countries. One variable is the number of physicians per 10,000 population. The other
variable is an infant mortality rate that is adjusted so that the wealth of the country is not being measured.
Analyze the data with a nonparametric test and comment on the results and write a conclusion.
Physicians Rank
1
2
3
4
5
6
7
8
9
10
Mortality Rank
2
1
4
3
6
5
9
8
10
7
Question 5:
Analyze the data with a nonparametric test and comment on the results and write a conclusion.
Rank in Weight
1
2
3
4
5
6
7
8
9
Rank in Dominance Hierarchy
3
4
1
8
7
2
5
6
9

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