Camp Rainbow offers overnight summer camp programs for children ages 1014 every summer during June and July. Each camp session is one week and can accommodate up to 200 children. The camp is not coed, so boys attend during the odd-numbered weeks and girls attend during the even-numbered weeks. While at the camp, participants make crafts, participate in various sports, help care for the camps resident animals, have cookouts and hayrides, and help assemble toys for local underprivileged children. The camp provides all food as well as materials for all craft classes and the toys to be assembled. One cabin can accommodate up to 10 children, and one camp counselor is assigned to each cabin. Three camp managers are on-site regardless of the number of campers enrolled. Following is the cost information for Camp Rainbows operations last summer:

Week	Number of Campers	Cost to Run Camp
1	172	$13,810
2	112	9,350
3	148	11,360
4	184	14,380
5	174	14,000
6	152	12,440
7	140	10,180
8	104	8,440

	Coefficients
Intercept	2,487.05
X Variable 1	59.16

Suppose that Rainbow is contemplating staying open one additional week during the summer.

1. Using the results of the least-squares regression analysis, determine Rainbows contribution margin per camper if each camper pays $154 to attend the camp for a week.

2. Using the results of the least-squares regression analysis, prepare a contribution margin income statement for week 9 assuming Rainbow expects to have 142 campers that week.

3. Should Rainbow add a ninth week to its schedule?

4. Using the high-low method, calculate Camp Rainbows total fixed operating costs and variable operating cost per child.

5. Using the high-low method results, calculate the camps expected operating cost if 140 children attend a session.