When Carrying Out a Chi-Square Test for Independence,a Good Check

question 13

Multiple Choice

When carrying out a chi-square test for independence,a good check on the arithmetic in figuring the expected frequencies is to make sure that

• A)the expected frequency of each cell is no larger than the observed frequency.
• B)the sum of all the expected frequencies times the degrees of freedom equals the sum of all the observed frequencies.
• C)within any one row or column,the sum of the observed frequencies and the sum of the expected frequencies are the same.
• D)the sum of all the expected frequencies for each row equals the sum of all the observed frequencies for each column minus 1.

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