Assuming That All Necessary Conditions Are Met,what Needs to Be $\hat { p } \pm t _ { \alpha } \sqrt { \hat { p } ( 1 - \tilde { p } ) / n }$

Multiple Choice

Assuming that all necessary conditions are met,what needs to be changed in the formula $\hat { p } \pm t _ { \alpha } \sqrt { \hat { p } ( 1 - \tilde { p } ) / n }$ so that we can use it to construct a (1 - $\alpha$ ) confidence interval estimate for the population proportion p?

A) should be replaced by p.
B) t _$\alpha$ should be replaced by z _$\alpha$ .
C) t _$\alpha$ should be replaced by t _{$\alpha$ / 2}.
D) t _$\alpha$ should be replaced by z _{$\alpha$ / 2}.