An electrical contractor's records during the last five weeks indicate the number of job requests: week: 1 2 3 4 5 requests: 20 22 18 21 22 predict the number of requests for week 6 using each of these methods:

Arnold rossiter is a 40-year-old employee of the barrington company who will retire at age 60 and expects to live to age 75. the firm has promised a retirement income of $20,000 at the end of each year following retirement until death. the firm's pension fund is expected to earn 7 percent annually on its assets and the firm uses 7% to discount pension benefits. what is barrington's annual pension contribution to the nearest dollar for mr. rossiter? (assume certainty and end-of-year cash flows.)