Use the values on the number line to find the sampling error. an infinite number line, labeled from 3 to 5, has tick marks in increments of 0.2. from left to right, a point labeled sample mean = 3.7 is plotted at 3.7, and a point labeled population mean = 4.18 is plotted at 4.18. 3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 4.8 5 x overbar equals 3.7mu equals 4.18