Multiple Choice
A random sample of 20 observations taken from a normally distributed population revealed a sample mean of 65 and a sample variance of 16. The lower limit of a 90% confidence interval for the population mean would equal:
A) 66.546.
B) 63.454.
C) 63.812.
D) 66.188.
Correct Answer:
Verified
Correct Answer:
Verified
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