Originally Posted by
mherr I put $\displaystyle \hat p=493/880$ into the formula:
$\displaystyle {(443/880) -.5\over \sqrt{(.5)(.5)\over 880}}=3.573$
is this correct and where do i go from here? Mr F says: Is z = 3.75 significant?
also, where do you use the info about the significance level being = 0.01 Mr F says: Well, if the significance level is 0.01, what's the value of $\displaystyle {\color{red}z_{\alpha}}$? You're expected to be able to look it up ....