(Choose 1 answer)
A machine is producing metal pieces that are cylindrical in shape. A sample of pieces is taken and the diameters are
Let t0.005.83.355, t0.01.8 = 2.896
1.01, 0.97, 1.03, 1.04, 0.99, 0.98, 0.99, 1.01. 1.03 (centimeters).
From this sample, one can compute a mean of 1.005 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.
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Α. (0.678, 1.093)
Β. (0.878. 1.043)
C. (0.998, 1.083)
D. None of the other choices is correct
Ε. (0.977, 1.033)
Q: 30
