Biology Forums - Study Force

	Level 1	Level 2	Level 3	Level 4
Group A	25	10	5	2
Group B	5	20	10	15

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This contingency table summarizes a sample of two groups of students in a remedial reading program. Each student was evaluated as being at one of four possible reading levels. Conduct aχ² test for homogeneity to see if the two groups are similar. Select the appropriate critical value (CV), test statistic (TS), and decision. (Useα= 0.05.)

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CV = 9.3484, TS = 27.7890, rejectH₀

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CV = 7.8147, TS = 10.5698, rejectH₀

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CV = 7.8147, TS = 27.7890, rejectH₀

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CV = 15.5073, TS = 10.5698, fail to rejectH₀

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