Multiple Choice
If the sample standard deviation is 10.5 and the sample mean is 48 based on a study with a sample size of 120,the 95 percent confidence interval about the mean is between approximately:
A) 44.37 and 51.63
B) 46.12 and 49.88
C) 47.88 and 48.12
D) 40.0 and 50.0
Correct Answer:
Verified
Correct Answer:
Verified
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