Kizspy | Question: 11
(Choose 1 answer)
Let 20.01 2.33, to.01,48 = 2.50.
A group of 49 randomly selected students has a mean age of 22.4 years. Assume the population standard deviation is 3.8. Construct a 98% confidence interval for the population mean.
Α. (18.8, 26.3)
Β. (21.1, 23.7)
C. (20.3, 24.5)
D. (19.8, 25.1)
E. None of the other choices is correct
