In a sample of 21 local electricians, the mean hourly cost is found to be $65 with a standard deviat
Question: In a sample of 21 local electricians, the mean hourly cost is found to be $65 with a standard deviation of $13. Construct a 90% confidence interval for the population mean cost of an electrician.
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Answer: The solution file consists of 1 page
Type of Deliverable: Word Document
Type of Deliverable: Word Document
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