The inside diameter of a randomly selected piston ring is a random variable with mean value 8 cm and standard deviation 0.08 cm. Suppose the distribution of the diameter is normal. (Round your answers to four decimal places) LAUSE SALT (a) Calculate (7.99 si s 8.01) whenn - 16. P(7.99 sxs8.01) - (b) How likely is it that the sample mean diameter exceeds 8.01 when - 25? Rx=01) =

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 8E
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The inside diameter of a randomly selected piston ring is a random variable with mean value 8 cm and standard deviation 0.08 cm. Suppose the distribution of the diameter is normal,
(Round your answers to four decimal places.)
LAUSE SALT
(a) Calculate P(7.99 sxs 8.01) when - 16.
P(7.99 X 8.01) -
(b) How likely is it that the sample mean diameter exceeds 8.01 when n = 257
PX8.01)
Transcribed Image Text:The inside diameter of a randomly selected piston ring is a random variable with mean value 8 cm and standard deviation 0.08 cm. Suppose the distribution of the diameter is normal, (Round your answers to four decimal places.) LAUSE SALT (a) Calculate P(7.99 sxs 8.01) when - 16. P(7.99 X 8.01) - (b) How likely is it that the sample mean diameter exceeds 8.01 when n = 257 PX8.01)
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