Mathematics, 31.03.2020 01:57, sarahjohnson5621

The inside diameter of a randomly selected piston ring is a random variable with mean value 14 cm and standard deviation 0.05 cm. Suppose the distribution of the diameter is normal. (Round your answers to four decimal places.) (a) Calculate P(13.99 ≤ X ≤ 14.01) when n = 16. P(13.99 ≤ X ≤ 14.01) = 0.4207 Incorrect: Your answer is incorrect. (b) How likely is it that the sample mean diameter exceeds 14.01 when n = 25? P(X ≥ 14.01) = 0.4207 Incorrect: Your answer is incorrect. Y

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The inside diameter of a randomly selected piston ring is a random variable with mean value 14 cm an...