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:

Major Depression

A mental disorder characterized by a persistent and intense feeling of sadness or loss of interest, affecting daily functioning.

Schizophrenia

A disorder marked by delusions, hallucinations, disorganized thinking and speech, and deterioration of adaptive behavior.

Bipolar Disorders

A group of mood disorders characterized by periods of significant mood swings between mania and depression.

Major Depressive Disorder

Disorder characterized by persistent feelings of sadness and despair and a loss of interest in previous sources of pleasure.