(Choose 1 answer)
(See picture)
In an application to estimate the mean number of miles that downtown employees commute to work roundtrip each day, the following information is given:
n = 20,
x = 4.33,
s=3.50
A. about 9.02 miles.
B. about 7.83 miles.
C. about 5.97 miles.
D. nearly 12.0 miles.
Based on this information, what is the upper limit for a 95 percent two-sided confidence interval estimate for the true population mean?
Let 20.025 1.96, 20.05 1.65, to.025.19 2.09 and to.05.19 = 1.73.
Oman tot ni
Exit 6
