Evaluate the formula $z = \frac{\hat{p} - p}{\sqrt{\frac{pq}{n}}}$ when $\hat{p} = \frac{151}{580}$, $n = 580$, $p = 0.25$, and $q = 1 - p$. $z = $ (Round to two decimal places as needed.)
Added by Robert R.
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Step 1: Substitute p = pq into the formula z n = z n = p-p 151 when p= pq z n = pq - pq 151 z n = pq(1 - 151) z n = pq(-150) Show more…
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