For a random sample of 10 fifth generation ipod music


For a random sample of 10 fifth generation iPod music players, the mean battery life  was 9.47 hours with a standard deviation of 2.14 hours.

a. Construct a 95% confidence interval for the mean number of hours the batteries will last on these players.

b. Suppose you wanted more accuracy, what could you do to increase the accuracy of the interval without changing the level of confidence?

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Basic Statistics: For a random sample of 10 fifth generation ipod music
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