Repeat this process for the next two class limits. The fourth lower class limit is 190. The fifth lower class limit is 230. (Type integers or decimals. Do not round.) Part 7 Since the maximum data value of 259 is less than 230plus40, a sixth class is not needed. The lower class limits are therefore 70, 110, 150, 190, and 230. Part 8 List the lower class limits in a vertical column and then determine and enter the upper class limits. The lower class limits are listed in a vertical column as shown. Service Time (seconds) Frequency 70dash 110dash 150dash 190dash 230dash