According to the National Telecommunication and Information Administration, 50

question 72

Multiple Choice

According to the National Telecommunication and Information Administration, 50.5% of U.S.
Households had Internet access in 2001. What is the probability that four randomly selected U.S.
Households all had Internet access in 2001?

• A) 12.6%
• B) 93.5%
• C) 49.5%
• D) 6.5%
• E) 50.5%

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Definitions:

Hypothesize

The process of making an educated guess or proposition that attempts to explain a phenomenon or answer a question, which can then be tested through experimentation or observation.

Research Hypothesis

A specific, testable prediction about the relationship between two or more variables.

Dependent Means

A situation in statistical analysis where the means being compared are not independent from each other, often because they come from the same group of subjects measured at different times.

T-Test

A statistical test used to compare the means of two groups.