Multiple Choice
A random sample of 64 observations produced a mean value of 82 and standard deviation of 5.5. The 90% confidence interval for the population mean is between
A) 81.86 and 82.14
B) 80.65 and 83.35
C) 80.87 and 83.13
D) 81.31 and 82.69
E) None of the above answers are correct.
Correct Answer:
Verified
Correct Answer:
Verified
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