Multiple Choice
Suppose that the population mean for IQ is 100 with a standard deviation of 15. A researcher is testing a group 25 of talented youth. His sample has a mean of 112 with a standard deviation of 14.
What is the 95% confidence interval of the mean?
A) 106.2 - 117.8
B) 82.6 - 141.4
C) 84.56 - 139.44
D) 104.7 - 119.3
Correct Answer:
Verified
Correct Answer:
Verified
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