The average salary for a construction worker is $29,160 per year. a veterinarian makes on average $84,460. if you consider the earning potential of both over a 30 year period, what is the difference between the veterinarian's earnings as compared to the construction worker's wages? $1,659,000$55,300$790,340$2,504,640

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.