A fitted regression Profit = −570 + 30 Sales (all variables in thousands of dollars)was estimated from a random sample of pharmacies.From this regression,in order to break even (Profit ≥ 0),a pharmacy's Sales would have to be at least
A)$19,000
B)$300,000
C)$56,000
D)$100,000

Question

Quizplus · Accepted Answer

To break even, Profit must be greater than or equal to 0. So, we need to solve the inequality:−570 + 30 Sales ≥ 030 Sales ≥ 570Sales ≥ 19Therefore, a pharmacy's Sales would have to be at least $19,000 to break even.

A Fitted Regression Profit = −570 + 30 Sales (All