Efficient manufacturing: Efficiency experts study the processes used to manufacture items in order to make them as efficient as possible. One of the steps used to manufacture a metal clamp involves the drilling of three holes. In a sample of 70 clamps, the mean time to complete this step was 54.2 seconds. Assume that the population standard deviation is o = 9 seconds. Round the critical value to no less than three decimal places. Part: 0 / 2 Part 1 of 2 dlo (a) Construct a 98% confidence interval for the mean time needed to complete this step. Round the answer to at least one decimal place. 同 A 98% confidence interval for the mean is <µ<.

Efficient manufacturing: Efficiency experts study the processes used to manufacture items in order to make them as efficient as possible. One of the steps used to manufacture a metal clamp involves the drilling of three holes. In a sample of 70 clamps, the mean time to complete this step was 54.2 seconds. Assume that the population standard deviation is o = 9 seconds. Round the critical value to no less than three decimal places. Part: 0 / 2 Part 1 of 2 dlo (a) Construct a 98% confidence interval for the mean time needed to complete this step. Round the answer to at least one decimal place. 同 A 98% confidence interval for the mean is <µ<.

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 40E: Pygmy Height The average height of a member of a certain tribe of pygmies is 3.2ft, with a standard...

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