what does the notation $z_{alpha}$ indicate? the expression $z_{alpha}$…

$what does the notation $z_{alpha}$ indicate? the expression $z_{alpha}$…$

what does the notation $z_{alpha}$ indicate? the expression $z_{alpha}$ denotes the z - score with an area of $alpha$

Brief Explanations

In the standard normal distribution, $z_{\alpha}$ is the z - score such that the area to its right under the standard - normal curve is $\alpha$.

to the right of it under the standard - normal curve.