6. The data below shows the number of days of delivery lead times of two popular service delivery companies in the country during the Covid 19 pandemic period, using each of their 10 randomly-selected delivery transactions: JRS: 11 10 10 11 11 10 11 10 10 LBC: 8 10 13 7 10 11 10 7 15 12 Note: This Problem Set is hypothetical. It is not the intent to prove that JRS is a better delivery service company compared to LBC, or vice versa. a. Range of delivery lead times (10 points): Range of delivery lead time of JRS: Range of delivery lead time of LBC: Based on the range of delivery lead times, which company is better? Why? Mean delivery lead times (10 points): Mean delivery lead time of JRS: Mean delivery lead time of LBC: Based on the mean delivery lead times, which company is better? Why? c. Standard deviation of delivery lead times (25 points): Sndard deviation of delivery lead time of JRS: Standard deviation of delivery lead time of LBC: Based on the mean delivery lead times, which company is better? Why? Page 6 of 7