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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 29 with a standard deviation of 4 days. Assume the data to be approximately bell-shaped. DUO Part: 0 / 3 Part 1 of 3 (a) Estimate the percentage of bills for which payment was made in greater than 37 days. Approximately 84 % of the bills have payments made in greater than 37. X 15 Part: 1 / 3 Part 2 of 3 (b) Estimate the percentage of bills for which payment was made in less than 25 days. Approximately % of the bills have payments made in less than 25. X 5