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7. (10 points) Wickecheoke Inc. manufactures roof shingles. For each box of shingles, the company production plan anticipates using 5 pounds of raw material at $2 per pound. During November the company produced 3,000 boxes of roof shingles. The following information pertains to the company's raw material inventory activity during the month of November. Show your calculations. Pounds Dollars Beginning Inventory 7,000 14,700 Purchases 15,000 31,500 Ending Inventory 8,000 16,800 f. What is the raw material variance?_ g. What is the raw material price variance? h. What is the raw material efficiency variance? i. Should the sum of the raw material efficiency variance and the raw material price variance equate the raw material variance? Explain your