Which equation does the graph below represent? 10
8
6
4
2
X
-5
1 2 3 4 5
- 2-10
-2
4
N
-6
-8
-10
Oy = -2x
Oy = 12 *
Oy = 2x
Oy = 1 x

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.