Jim is riding his bike home from school. the school is 9 miles from his house and he rides his bike at a constant speed of 12 miles per hour. which of the following graphs best represents jim's trip home? -
answers:
a) z
b) y
c) x
d) w

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.