The Share of the Population in the World Living with Less

question 149

Multiple Choice

The share of the population in the world living with less than two U.S. dollars a day is

• A)about 50 percent.
• B)about 25 percent.
• C)10 percent.
• D)2 percent.
• E)90 percent.

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Definitions:

Test Statistic

A value calculated from sample data during a hypothesis test, used to make a decision about the null hypothesis.

P-Value

A statistical measure that helps to determine the strength of the results to support or reject the null hypothesis.

Null Hypothesis

A hypothesis that assumes there is no statistical significance in a set of given observations and that any observed difference is due to sampling or experimental error.

P-Value

The probability of obtaining test results at least as extreme as the results actually observed, under the assumption that the null hypothesis is true.