Kevon has four plants in his garden; their heights, in inches, are listed below. {6,5,5,5
Kevon buys a miniature cactus that is - of an inch shorter than the second shortest
plant from his garden. How tall is the miniature cactus, in inches?

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.