Salkind Quiz Chapter 17 (Chi-Square)

In the result mc028-1.jpg, what is 8.4?

wrong

If there is no difference between what is observed and what is expected, your chi-square value will be _______.

0

If there are five categories for which you are calculating a one-sample chi-square, what are the degrees of freedom?

4

In calculating a one sample chi-square test, if you had 4 degrees of freedom, your variable would have _______ categories.

5

Which of the following computes the exact probability of outcomes in a 2 ´ 2 table?

Fisher's exact test

A one-sample chi-square is also known as a _______.

Goodness-of-fit test

If you have 100 respondents identifying their region of residence (i.e., North, South, Midwest, or West), what would the expected frequency be for each category?

25

If you have 100 respondents identifying their political affiliation (i.e. Democrat, Republican, or independent), what would the expected frequency be for each category?

33

Which of the following nonparametric tests is used to examine the correlation between ranks?

Spearman rank

The _______ function in Excel provides the probability of an outcome given the degrees of freedom and the value of the statistic mc037-1.jpg.

CHISQ DIST

The obtained value must be compared against which of the following?

Critical value

Nonparametric statistics are known as _______.

Distribution-free statistics

In the result mc026-1.jpg, what is 3?

The degrees of freedom

In the result mc029-1.jpg, what is .05?

The significance level

If you have more than _______ levels, you will have to modify the formula you use in Excel.

Three

Chi-square is a nonparametric statistical test.

True

If you were interested in finding out if there was an association between whether college students were involved in a club on campus or not and the grades they earned, but you only had a letter grade (i.e., A, B, C, D) to use for the analysis, the chi-square test of independence could be used to find out the answer.

True

In the chi-square test of independence, both dimensions need to have at least two levels or categories to compare, but they could have more.

True

The Excel function named CHISQ.TEST will compute the probability of a particular chi-square value if you enter the degrees of freedom and the value of the chi-square.

True

The chi-square statistic measures the difference between the observed data and what would be expected by chance alone.

True