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

question 15

Essay

A recent study from the University of California, Berkeley, suggests that, compared to white Americans, black Americans are more likely to cross the race barrier in online dating. In a sample of 120 white men, 24 initiated contact with someone outside their race, whereas in a similar sample of 90 black men, 36 initiated contact with someone outside their race.
A) Specify the hypotheses to justify the suggestion.
B) Find the critical value(s) of the appropriate test at the 1% significance level.
C) Calculate the value of the test statistic.
D) Make a conclusion at the 1% significance level.

• A) Specify the hypotheses to justify the suggestion.
• B) Find the critical value(s) of the appropriate test at the 1% significance level.
• C) Calculate the value of the test statistic.
• D) Make a conclusion at the 1% significance level.

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Definitions:

Depression-Related

Pertaining to symptoms, conditions, or factors associated with or resulting from depression, a mood disorder characterized by persistent feelings of sadness and loss of interest.

Brain Circuit

A network of particular brain structures that work together, triggering each other into action to produce a distinct kind of behavioral, cognitive, or emotional reaction.

Cognitive-Behaviorist

A cognitive-behaviorist is a mental health professional who applies principles of cognitive-behavioral therapy (CBT) to help individuals modify dysfunctional thoughts and behaviors to improve emotional regulation and develop personal coping strategies.

Learned Helplessness

A condition in which a person suffers from a sense of powerlessness, arising from a traumatic event or persistent failure to succeed. It is thought to be one of the underlying causes of depression.