Of 200 youthful gamers (under 18) who tried the new Z-Box-Plus game, 160 rated it "excellent," compared with only 144 of 200 adult gamers (18 or over). The pooled proportion for a test to compare the two proportions would be:
A).76
B).72
C).77
D)Must know α to answer.

Question

Quizplus · Accepted Answer

The pooled proportion is calculated by combining the successes and total trials from both groups: (160 + 144) / (200 + 200) = 304 / 400 = 0.76.

Of 200 Youthful Gamers (Under 18) Who Tried the New