Question: A recent article in The Cincinnati Enquirer reported that the mean labor cost to repair a heat pump is $90 with a standard deviation of

A recent article in The Cincinnati Enquirer reported that the mean labor cost to repair a heat pump is $90 with a standard deviation of $22. Monte's Plumbing and Heating Service completed repairs on two heat pumps this morning. The labor cost for the first was $75 and it was $100 for the second. Assume the distribution of labor costs follows the normal probability distribution. Compute z values for each and comment on your findings.

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