☑Kizspy.me
(Choose 1 answer)
A machine is producing metal pieces that are
cylindrical in shape. A sample of pieces is
☐ A
taken and the diameters are
☐ C
1.01, 0.97, 1.03, 1.04, 0.99, 0.98, 0.99, 1.01.
1.03 (centimeters).
Back
Next
From this sample, one can compute a mean of
1.006 and a standard deviation of 0.025.
Find a 99% confidence interval for the mean
diameter of pieces from this machine.
assuming an approximate normal distribution.
A. (0.998; 1.083)
B. (0.678; 1.093)
C. (0.878; 1.043)
D. (0.978; 1.034)
Let to.005.8 3.355, to.01.8 = 2.896
FUQ.sh
sh the exam.
