Question

Suppose 57 in a sample of 150 police agencies employ tasers. Identify each of the following: p, p̂,  x, and n

Answer 1

Here x denotes the police agencies who employ tasers. Thus x = 57.

n denotes the sample size, n = 150

and $\small \hat p$ is estimated value of population proportion from the sample of 150 police agencies. It is calculated as $\small \hat p$ = x/n

$\small \hat p$ = 57/150

$\small \hat p$ = 0.38

Also p is population proportion and it is estimated as: p = $\small \hat p$ = 0.38.