Assume that you plan to use a significance level of $\alpha = 0.05$ 05 to test the claim that $p _ { 1 } = p _ { 2 }$ . Use the given sample sizes and numbers of successes to find the pooled estimate $\bar { p }$ Round your answer to the nearest thousandth. $$\begin{array} { l l }
n _ { 1 } = 100 & n _ { 2 } = 100 \
x _ { 1 } = 42 & x _ { 2 } = 45
\end{array}$$
A) 0.305
B) 0.435
C) 0.479
D) 0.392

Question

Assume that you plan to use a significance level of $\alpha = 0.05$ 05 to test the claim that $p _ { 1 } = p _ { 2 }$ . Use the given sample sizes and numbers of successes to find the pooled estimate $\bar { p }$ Round your answer to the nearest thousandth. $$\begin{array} { l l } 
n _ { 1 } = 100 & n _ { 2 } = 100 \
x _ { 1 } = 42 & x _ { 2 } = 45
\end{array}$$
A) 0.305
B) 0.435
C) 0.479
D) 0.392

Quizplus · Accepted Answer

The pooled estimate $\bar{p}$ is calculated as $\bar{p} = \frac{x_1 + x_2}{n_1 + n_2} = \frac{42 + 45}{100 + 100} = \frac{87}{200} = 0.435$.

Assume That You Plan to Use a Significance Level Of \alpha