question archive The following partially complete 2 × 2 contingency table shows the responses to two treatments: Treatment 1: Success-70 Failure- n12 Treatment 2: Success- n21 Failure- n22 Total Treatment 1: 100 Total Treatment 2: 200   (a) Consider the test statistic χ 2 s in a χ 2 independence test

The following partially complete 2 × 2 contingency table shows the responses to two treatments: Treatment 1: Success-70 Failure- n12 Treatment 2: Success- n21 Failure- n22 Total Treatment 1: 100 Total Treatment 2: 200   (a) Consider the test statistic χ 2 s in a χ 2 independence test

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The following partially complete 2 × 2 contingency table shows the responses to two treatments: Treatment 1: Success-70 Failure- n12 Treatment 2: Success- n21 Failure- n22 Total Treatment 1: 100 Total Treatment 2: 200

 

(a) Consider the test statistic χ 2 s in a χ 2 independence test. Complete the contingency table above so that the observed test statistic is χ 2 s = 0.

 

(b) For the table in (a), what is the estimated odds ratio of success of treatment 1, relative to treatment 2?

 

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