STATISTICAL TECHNIQUES AND TOOLS
CONFIDENCE INTERVALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In a random sample of 28 sports cars, the average annual fuel cost was $2218 and the standard deviation was $523. Construct a 90% confidence interval for the population mean. Assume the annual fuel costs are normally distributed.
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2049.7< µ < 2386.3
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2055.4 < µ < 2380.6
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Either A or B
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None of the above
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Explanation:
There is 1 question to complete.