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Author Question: If the standard deviation of the lifetimes of vacuum cleaners is estimated to be 300 hours, what ... (Read 76 times)

P68T

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on: Jun 24, 2018
If the standard deviation of the lifetimes of vacuum cleaners is estimated to be 300 hours, what sample size must be selected in order to be 97 confident that the margin of error will not exceed 40 hours?

Question 2

Explain the relationship among model development, model accuracy, and the ability to obtain a solution from a model.


Eunice618

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Reply #1 on: Jun 24, 2018
Answer to Question 1

265

Answer to Question 2

Answer not provided.


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