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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:

Organic Groups

Clusters or families of organic compounds sharing common characteristics or structural features, often categorized by their functional groups.

Protein

Big biological molecules made up of one or more lengthy strands of amino acid components, essential for the formation, operation, and control of the body’s organs and tissues.

Adenine

A purine base found in DNA and RNA, which pairs with thymine in DNA and with uracil in RNA during the formation of nucleic acids.

Nucleotide

A basic building block of DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.