Math  /  Data & Statistics

QuestionIf random samples of the given sizes are drawn from populations with the given proportions, find the mean and standard error of the distribution of differences in sample proportions, p^1p^2\hat{p}_{1}-\hat{p}_{2}. n1=170 from p1=0.7 and n2=140 from p2=0.4\begin{array}{c} n_{1}=170 \text { from } p_{1}=0.7 \text { and } n_{2}=140 \text { from } \\ p_{2}=0.4 \end{array}
Round your answers to three decimal places, if necessary. mean =

Studdy Solution
The mean difference is 0.30.3, and the standard error is approximately 0.0540.054.

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