Sally's Swimwear produces high-end custom swimsuits. Presented is the monthly information for the last 15 months:
	Total Manufacturing Costs	Total Swimsuits produced	Boardshorts Produced	Bikinis Produced
January-16	28,431	124	51	73
February-16	31,945	148	34	114
March-16	35,488	150	74	76
April-16	35,787	158	61	97
May-16	42,700	171	123	48
June-16	31,884	141	47	94
July-16	30,021	131	54	77
August-16	40,455	175	69	106
September-16	35,129	159	51	108
October-16	37,382	158	72	86
November-16	31,201	136	58	78
December-16	40,794	176	81	95
January-17	36,253	157	58	99
February-17	38,880	171	68	103
March-17	27,914	111	40	71
1. Use the high-low method to develop a cost-estimating equation for total manufacturing costs.
2. Use simple regression analysis to develop a cost-estimating equation for total manufacturing costs. A customer has offered to purchase 75 boardshorts for $250 per item. Management has asked your advice regarding whether or not to accept the offer. What advice do you have for management?
3. Use multiple regression analysis to develop a cost-estimating equation for total manufacturing costs. A customer has offered to purchase 75 boardshorts for $250 per item. Management has asked your advice regarding whether or not to accept the offer. What advice do you have for management?