An experiment measuring the percent shrinkage on drying of 10 clay specimens produced the [7] following data: 17.2 15.2 13.1 17.5 15.6 14.8 13.4 17.4 16.2 13.4 Group the data into class intervals of size 1 percent starting With the value 13.1; and draw the resulting histogram. For the grouped data, compute the sample mean and compare With the ungrouped mean