Test for the independence between the disease and exposure

Reference no: EM13953411

A matched case-control study was conducted to evaluate the cumulative effects of acrylate and methacrylate vapors on olfactory function (Schwarts et al., 1989). Cases were defined as scoring at or below the 10th percentile on the UPSIT (University of Pennsylvania Smell Iden- tification Test; Table E11.12).

Cases

Controls Exposed Unexposed

Exposed 25 22

Unexposed 9 21

(a) Find a 95% confidence interval for the odds ratio measuring the strength of the relationship between the disease and the exposure.

(b) Test for the independence between the disease and the exposure.

Reference no: EM13953411

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