The time (in seconds) needed to complete a critical task on an assembly line was measured for a sample of 50 assemblies. The date is displayed in the...

The time (in seconds) needed to complete a critical task on an assembly line was measured for a sample of 50 assemblies.The date is displayed in the accompanying table.40.341.944.442.841.142.240.746.840.540.644.543.140.140.740.940.740.240.647.941.041.144.640.243.141.142.140.641.540.240.340.940.041.640.244.444.240.240.141.444.143.742.742.442.841.040.743.445.740.740.41.1Using the stem and leaf technique, construct a less-than cumulative frequency distribution. -Draw to scale a histogram, frequency polygon and less-than cumulative ogive using the information from 1. Use the ogive to determine the range and the mid80% range. Determine the coefficient of variation. Interpret your answer.