☑Kizspy.me
Answer (Choose 1 answer)
☐ A
(See picture)
A. None of the other choices
is correct
☐ D
B. (3.5; 5.1)
☐ E
C. (3.8; 4.8)
D. (3.2: 5.4)
E. (3.6: 5.0)
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FUO.sh
sh the exam.
Two types of flares are tested for their burning
times (in minutes) and sample results are given
below
Brand X: n=35, -19.4, s=1.4
Brand Y: n=40, -15.1, s=0.8
Construct a 95% confidence interval for the dif-
ferences μxy based on the sample data.
Assume that the two samples are independent
and that they have been randomly selected.
Let
to.025,34-2.032 and to.025,73=1.993.
