Author Question: A personnel manager believes that a particular employee produces more defective parts than his ... (Read 56 times)

desireelg_7 · **on:** Feb 26, 2023

Question 1

A continuous population has a mean of 210.51 and a standard deviation of 10.31. Suppose we know that the population is normally distributed. Compute the smallest interval centered on the mean that will contain 95% of the observations.

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(200.20, 220.82)

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(164.40, 256.62)

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(179.58, 241.44)

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(189.89, 231.13)

Question 2

A personnel manager believes that a particular employee produces more defective parts than his peers. The manager records the worker’s production over the course of several weeks. Out of 315 parts produced, 11 are defective. Calculate\(\style{font-family:Times New Roman;}{\widehat p}\)(the sample proportion) if we define a defective part as a “success.”

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0.035

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11

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28.64

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miro2222 · **Reply #1 on:** Feb 26, 2023

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