A warden is motivated to reduce to aggressive interactions between inmates that sometimes occur in common areas like the yard. He tasks you, the prison psychologist, to find out what can be done to reduce aggressive behavior. Having known the prisoners, you hypothesize that there must be a relation between aggressiveness and having something to keep oneself busy. You get 10 volunteer inmates and give them a scale of aggression and then ask how many hours a week on average they spend with a hobby.The data in z-scoresare: ZAgression: .54, .12, .31, .85, -.89, -1.78, -.34, -.1, 0.04, -.1.73ZHobbyTime: -.95, .04, .86, -1.2, -1.23, -.51, -.25, .4, -.36, -2.35
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
A warden is motivated to reduce to aggressive interactions between inmates that sometimes occur in common areas like the yard. He tasks you, the prison psychologist, to find out what can be done to reduce aggressive behavior. Having known the prisoners, you hypothesize that there must be a relation between aggressiveness and having something to keep oneself busy. You get 10 volunteer inmates and give them a scale of aggression and then ask how many hours a week on average they spend with a hobby.The data in z-scoresare:
ZAgression: .54, .12, .31, .85, -.89, -1.78, -.34, -.1, 0.04, -.1.73ZHobbyTime: -.95, .04, .86, -1.2, -1.23, -.51, -.25, .4, -.36, -2.35
A. Identify the predictor and predicted variables and describe their levels of measurement.
B. Conduct the appropriate test. Make a decision about the null hypothesis, interpret your results. At ?=.05what is your conclusion? What would be good ways of reducing aggression?
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