Multiple Choice
According to the video game industry's statistics, the average gamer is 34 years old.Imagine the standard deviation for age is 7.5 years.Leroy collected data on video gaming among people with new tablets or iPads to see if the mean age of that group is older or younger.He finds an average age of 36.5 years based on a sample size of 54.His 95 percent confidence interval is:
A) [34.58, 38.42].
B) [36.23, 36.77].
C) [33.88, 38.12].
D) [34.5, 38.5].
Correct Answer:
Verified
Correct Answer:
Verified
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