Question

PLEASE SHOW ALL CALCULATIONS SO I CAN UNDERSTAND HOW TO WORK RELATABLE PROBLEMS

Answer 1

Solution:-

The number of toys would the manufacturer have to be randomly sample to make sure that they are not defective is 1476.

$\hat{p}=0.04$

M.E = 0.01

C.L = 95%

$M.E = z_{\alpha /2}\times\sqrt{ \frac{p(1-p)}{n}}$

$n =\left ( \frac{z_{\alpha /2}}{M.E} \right )^{2}\times p(1-p)$

$n =\left ( \frac{1.96}{0.01} \right )^{2}\times 0.04(1-0.04)$

n = 1475.17

n = 1476