8) Consider the following study results comparing a new experimental treatment t

Question

8) Consider the following study results comparing a new experimental treatment to a placebo for survival 5 years after treatment: DiedSurvived Treatment Placebo 100 70 30 a) * point) If the true survival rate for the treatment group is the same as the true survival rate for the placebo group, how many of the participants on treatment in this study would you expect to die? b) Is the following statement true? The chi-square test (for a 2x2 table) would NOT be appropriate to compare the survival rates between treatment and placebo groups because there one of the cells in the 2x2 table has a 0 (ie. there are no patients in the treatment group who died). Explain your answer.

Explanation / Answer

Yes the above statement is true because in chi square test for a 2 by 2 table none of the cell value should be zero . .

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