A recent article in the Myrtle Beach Sun Times reported that the mean labor cost to repair a color television is $90 with a standard deviation of $22. Monte’s TV Sales and Service completed repairs on two sets this morning. The labor cost for the first was $75 and it was $100 for the second. Compute z values for each and comment on your findings.

Question

A recent article in the Myrtle Beach Sun Times reported that the mean labor cost to repair a color television is $90 with a standard deviation of $22.  Monte’s TV Sales and Service completed repairs on two sets this morning.  The labor cost for the first was $75 and it was $100 for the second.  Compute z values for each and comment on your findings.

PsyDAG · Answer

Z = (score-mean)/SD Insert values and calculate.