On the way home, Mark rode the first six miles of the trip in 30minutes to stop at the ice cream shop. What was his speed inmiles per hour? (Don’t forget to convert minutes to hours, first!) its science okeh anyways sooo#streampermissiontodance

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.