The sampling distribution of is approximated by a $\bar { p } _ { 1 } - \bar { p } _ { 2 }$
A) normal distribution
B) t-distribution with n1 + n2 degrees of freedom
C) t-distribution with n1 + n2 - 1 degrees of freedom
D) t-distribution with n1 + n2 + 2 degrees of freedom

Question

Quizplus · Accepted Answer

The sampling distribution of the difference between two sample proportions $\bar{p}_1 - \bar{p}_2$ is approximated by a normal distribution, especially when the sample sizes are large enough for the Central Limit Theorem to apply.

The Sampling Distribution of Is Approximated by A pˉ1−pˉ2\bar { p } _ { 1 } - \bar { p } _ { 2 }pˉ​1​−pˉ​2​

The Sampling Distribution of Is Approximated by A $\bar { p } _ { 1 } - \bar { p } _ { 2 }$