In: Statistics and Probability
Does the price of items affect store's sales of any product. Data from a store along Bull Street was analyzed using regression analysis. The coefficient of determination (r-squared) was found to 0.64. Least squares regression equation is given by
SALES = 2259 - 1418 PRICE
Can we say here that the price is a good predictor of sales?
| A. | 
 Yes, the slope is negative  | 
|
| B. | 
 No, r-squared is not too good.  | 
|
| C. | 
 Yes, the intercept is very large.  | 
Does the price of items affect store's sales of any product. Data from a store along Bull Street was analyzed using regression analysis. The coefficient of determination (r-squared) was found to 0.64. Least squares regression equation is given by
SALES = 2259 - 1418 PRICE
Can we say here that the price is a good predictor of sales?
correct option is A Yes the slope is negative
here PRICE coefficient is negative it is affect on the store sale .
we know that as PRICE is less SALES is more , it is general rule for market .
so here PRICE should be less if we want to increase sales .
here R square value is 0.64 also it is good . so our model is good .