Answer Happy

Pay your bills: In a large sample of customer accounts, a utility company determined that the average number of days between when a bill was sent out and when the payment was made is 30 with a standard deviation of 6 days. Assume the data to be approximately bell-shaped. Part 1 of 3 (a) Estimate the percentage of bills for which payment was made in greater than 36 days. Approximately 16% of the bills have payments made in greater than 36. Part: 1 / 3 Part 2 of 3 (b) Estimate the percentage of bills for which payment was made in less than 18 days. Approximately 1.5% of the bills have payments made in less than 18. Х 5