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9. [2/2 Points] I DETAILS “ PREVIOUS ANSWERS I MY NOTES I : : [ This Excel file Traffic Congestion has traffic congestion data for 101 urban areas in the United States over the 33-year period 1982-2014. The quantitative variable reported for each urban area and for each year is the annual delay per commuter (in hours) caused by rush hour traffic jams. Using only the data for 2014, determine the 2014 z-score for Raleigh and the 2014 z-score for Charlotte. Round the mean and standard deviation for 2014 to 2 decimal places. « z-score for Raleigh (round to 2 decimal places) « z-score for Charlotte (round to 2 decimal places).