12.27Xr12-27A parking control officer is conductingan analysis of the amount of time left on…

12.27Xr12-27A parking control officer is conductingan analysis of the amount of time left on parkingmeters. A quick survey of 15 cars that have just lefttheir metered parking spaces produced the followingtimes (in minutes). Estimate with 95% confidencethe mean amount of time left for all the city’s meters.22 15 1 14 0 9 17 3118 26 23 15 33 28 20