STATISTICAL TECHNIQUES AND TOOLS
CONFIDENCE INTERVALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A nurse at a local hospital is interested in estimating the birth weight of infants. How large a sample must sheselect if she desires to be 99% confident that the true mean is within 4 ounces of the sample mean? Thestandard deviation of the birth weights is known to be 9 ounces.
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30
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7
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15
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34
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Explanation:
There is 1 question to complete.