In the Chi square test, expected frequencies are computed by________.
A) adding the observed frequency to N and subtracting the number of cells.
B) multiplying the observed frequencies by the row marginals and dividing by degrees of freedom.
C) multiplying the proper row and column marginals for each cell and dividing by N.
D) adding the proper row and column marginals together and dividing by N.

Question

Quizplus · Accepted Answer

To compute the expected frequencies in the Chi square test, we need to take into account the row and column totals for each cell, as well as the total sample size N. The proper calculation for expected frequencies is to multiply the row and column marginals for each cell and divide by N. This ensures that the expected frequencies reflect the probability of observing each cell under the null hypothesis of independence. Therefore, the correct choice is C.

In the Chi Square Test, Expected Frequencies Are Computed By________