METHODS OF DATA ANALYSIS
PARAMETRIC AND NON PARAMETRIC TESTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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At least five
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Four
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Atleast Three
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None of the above
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Detailed explanation-1: -Answer and Explanation: The chi-square test assumes that all expected frequencies are at least 1 and no more than 20% of the expected frequencies are less than 5. Thus, according to the Rule of Five, the expected frequencies of each cell should be at least 5.
Detailed explanation-2: -Expected Frequency = (Row Total * Column Total)/N. The computations can be organized in a two-way table. The top number in each cell of the table is the observed frequency and the bottom number is the expected frequency.
Detailed explanation-3: -The value of the cell expecteds should be 5 or more in at least 80% of the cells, and no cell should have an expected of less than one (3). This assumption is most likely to be met if the sample size equals at least the number of cells multiplied by 5.