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A Recent Study from the University of California, Berkeley, Suggests

question 58

Essay

A recent study from the University of California, Berkeley, suggests that compared to black Americans, white Americans are less likely to cross the race barrier in online dating. In a sample of 120 white men, 24 initiated contact with someone outside of their race, whereas in a similar sample of 90 black men, 36 initiated contact with someone outside of their race.
A) Specify the competing hypotheses to determine if the proportion of white Americans initiating a contact outside their race is exactly 10 percentage points lower than that of black Americans.
B) Find the critical value(s) of the test.
C) Calculate the value of the test statistic.
D) Make a conclusion at the 5% significance level.

Definitions:

Fixed Ratio Schedule

A schedule of reinforcement where a response is rewarded only after a specified number of responses, commonly used in behavior modification programs.

Intermittent Reinforcement

A conditioning schedule in which rewards or punishments are given only some of the time a behavior occurs, leading to stronger response patterns.

Extinction

In behavioral psychology, the gradual weakening and disappearance of a conditioned response when the reinforcement is no longer presented.

Dangerous Pranks

Actions intended to be humorous or playful but carry a high risk of causing harm or damage.