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Interpreting a Confidence Interval for a Mean
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The table below provides summary statistics for the gas mileage of a sample of 10 cars. Using these data, a 95% confidence interval for the true mean gas mileage was calculated to be $$ (25.91,\;28.49) $$. Which of the following statements is a correct interpretation of this interval?

Sample Size Mean MPG Standard Deviation (mpg)
10 27.2 1.8
A

There is a 95% probability that in repeated sampling, 95% of the individual cars will have a mileage between $$25.91$$ and $$28.49$$ mpg.

B

There is a 95% chance that the observed sample mean falls between $$25.91$$ and $$28.49$$ mpg.

C

We are 95% confident that the true mean gas mileage of all new model cars lies between $$25.91$$ and $$28.49$$ miles per gallon.

D

Exactly 95% of all cars in the population are expected to have a gas mileage within the interval $$25.91$$ to $$28.49$$ mpg.

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