In a random sample of 35 tractors, the annual cost of maintenance was $4,425 and the standard deviat
Question: In a random sample of 35 tractors, the annual cost of maintenance was $4,425 and the standard deviation was $775. Construct a 90% confidence interval for this. Assume the annual maintenance costs are normally distributed.
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Deliverables: Word Document
Deliverables: Word Document
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