Question

The approximate​ z-score that corresponds to a right tail area of 0.45 is

Answer 1

The z score that corresponds to a right tail area of 0.45 is given by


`P(z\ \textgreater \ x)=0.45 \\ \\ 1-P(z\ \textless \ x)=0.45 \\ \\ P(z\ \textless \ x)=1-0.45=0.55 \\ \\ P(z\ \textless \ x)=P(z\ \textless \ 0.126) \\ \\ x=0.126`

Therefore, the approximate​ z-score that corresponds to a right tail area of 0.45 is 0.126