i. For a contingency table, the expected frequency for a cell is found by dividing the row total by the grand total. ii. The claim that "male and female University of Toledo students prefer different parking lots on campus" is an example of a chi-square null hypothesis.
iii. For contingency table analysis using the chi-square test, multiplying the number of rows minus 1 by the number of columns minus 1 will give you the degrees of freedom.
A) (i), (ii), and (iii) are all correct statements.
B) (i) and (ii) are correct statements but not (iii).
C) (iii) is a correct statement but not (i) or (ii).
D) (ii) and (iii) are correct statements but not (i).
E) (i), (ii), and (iii) are all false statements.

Question

Quizplus · Accepted Answer

- Statement (i) is incorrect because the expected frequency for a cell in a contingency table is found by multiplying the row total and the column total and then dividing by the grand total.- Statement (ii) is incorrect because it describes an alternative hypothesis, not a null hypothesis. The null hypothesis would typically state that there is no difference in preferences between male and female students.- Statement (iii) is correct because the formula for degrees of freedom in a contingency table chi-square test is indeed (number of rows - 1) * (number of columns - 1).

I for a Contingency Table, the Expected Frequency for a Cell