In the Following Table, Likely Voters' Preferences of Two Candidates

question 95

Multiple Choice

In the following table, likely voters' preferences of two candidates are cross-classified by gender. For the chi-square test of independence, the assumed degrees of freedom are ________.

• A) 1
• B) 2
• C) 3
• D) 4

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Definitions:

T-distribution

A probability distribution used in statistics that arises when estimating the mean of a normally distributed population in situations where the sample size is small and the population standard deviation is unknown.

Standard Normal Distribution

Normal distribution measured in standard deviation units with a mean equal to 0 and a standard deviation equal to 1.

Sampling Distribution

The distribution pattern of probabilities for a certain statistic obtained through random sampling.

Alpha (α)

Probability of a statistic used to make the decision whether to reject the null hypothesis.