Multiple Choice
A researcher takes a very large,nationwide random sample of 7th grade students and computes a mean verbal ability score of 85.50 with a standard deviation of 8.35.From this information,she computes a standard error of the mean of 2.64.What are the upper and lower limits of the 95% confidence interval for the mean?
A) 69.13 to 101.87
B) 77.15 to 93.85
C) 80.33 to 90.67
D) 82.86 to 88.14
Correct Answer:
Verified
Correct Answer:
Verified
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