6 In a certain repetitive manual operation, the standard time is 2.50 min/work unit and the worker's base rate is $9.00/hr. The plant's policy is to pay workers a weekly wage for their weekly output. During one 40-hour workweek, the daily output in work units was 200, 230, 180, 220, and 240 for the 5 days. Determine the worker's wage for the week under the fol- lowing payment plans: (a) day rate, (b) standard hour plan with guaranteed base rate, and (c) bonus-sharing plan where bonus sharing factor p = 0.35. Finally, assume the same plan as (b) except the worker is paid daily (8 hours/day) for his daily output. (d) What are his weekly earnings