(Choose 1 answer)
(See picture)
A. Do not reject null hypothesis
B. Reject the null hypothesis
A bearing used in an automotive application is supposed to have a norminal inside diameter of 1.5 inches. A random sample of 36 bearing is selected and the average inside diameter of these bear-ing is 1.4895 inches. Bearing diameter is known to be normally distributed with standard deviation = 0.02 inch. Test the hypotheses Ho: μ = 1.5 versus H₁: μ≠ 1.5 using a = 0.01
Let
2001 = 2.326,20.005 = 2.576
an tot ni
Exit 30
