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A psychologist runs rats through a maze and records the total time it takes for them to navigate the ...

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A psychologist runs rats through a maze and records the total time it takes for them to navigate the ...

A psychologist runs rats through a maze and records the total time it takes for them to navigate the course. If the run times are a normally distributed with a mean of 21 min and the variance of the run times is 9 min, at least 68% of the rats will run the maze within what interval of time?

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(18 min, 24 min)

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(12 min, 30 min)

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(15 min, 27 min)

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(5.09 min, 36.91 min)

Textbook

Introductory Statistics: A Problem-Solving Approach

Edition: 3^rd

Author: Kokoska

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