Which interpretation of the slope of the regression equation is correct. Use the table for data. The study is looking at number of clients called on the phone and unit sales.

	Regression
Multiple R	0.65
R square	0.42
Intercept	91.50
Calls	7.00

For every client called on the phone, unit sales increase by 7

The slope is a + bx so 91.50 + 7(calls)

None of these answers is correct

The slope interpretation is 91.50

For every sale, you must call at least 7 clients.