Ra*te me i am bored. 1- 10

Can you me find the missing length. i attached an image.

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.

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase