What is 1/4 + 1/2

A: 1/6
B: 2/4
C: 3/4
D: 2/4

Can someone tell me if this is perpendicular? !

Describe how making an ‘and’ compound sentence effects your solution set

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.