Shane's youth group commits to making a certain number of sandwiches for a local soup kitchen. They make 112 sandwiches, but then they run out of peanut butter. The group still
has 148 sandwiches left to make to meet their commitment.
Use an equation to find the total number of sandwiches the youth group commits to making.

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.