In a Learning Experiment, Untrained Mice Are Placed in a Maze

question 111

Short Answer

In a learning experiment, untrained mice are placed in a maze and the time required for each mouse to exit the maze is recorded. The average time for untrained mice to exit the maze is = 50 seconds and the standard deviation of their times is = 16 seconds. 64 randomly selected untrained mice are placed in the maze and the time necessary to exit the maze is recorded for each.
Find the mean of the sampling distribution of .
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Find the standard deviation.
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What is the probability that the sample mean differs from the population mean by more than 3?
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Definitions:

Effective Rate

The actual interest rate that an individual earns or pays on an investment, loan, or other financial product, after compounding and other factors are taken into account.

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A financial loan specifically used to purchase a car, typically secured by the car itself as collateral.

Periodic Rate

The interest rate applied to a financial loan or savings account that is compounded at regular intervals over a period of time.

Effective Rate

The actual interest rate an individual pays on a loan or earns on an investment, after compounding and other charges are factored in.