## Related questions with answers

Two different creams are used to treat subjects with poison ivy irritation on both hands. Each subject is given a treatment of Ivy Ease on one hand while their other hand is treated with a placebo. The sample results are summarized in the table below. Use a 0.05 significance level to test the null hypothesis that the following two proportions are the same: (1) the proportion of subjects with relief on the hand treated with Ivy Ease and no relief on the hand treated with a placebo; (2) the proportion of subjects with no relief on the hand treated with Ivy Ease and relief on the hand treated with a placebo. Does the Ivy Ease treatment appear to be effective?

$\begin{matrix} & \text{Treatment with Ivy Ease} & \text{Relief} & \text{No Relief}\\ \text{Placebo} & \text{Relief} & \text{12} & \text{8}\\ & \text{No relief} & \text{32} & \text{19}\\ \end{matrix}$

Solution

VerifiedWe will compute for the test statistic of the given data below with significance level of $0.05$.

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