Multiple Choice
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) .Calculate the 95 percent confidence interval for the difference of proportions.
A) [+.013,+.263]
B) [−.014,+.188]
C) [−.003,+.163]
D) [+.057,+.261]
Correct Answer:
Verified
Correct Answer:
Verified
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