The new movie increased in popularity every week. The first weekend, 60 people saw it. The second weekend, 180 people saw it. The third weekend, 540 people saw it. If the pattern continues then how many people saw it on the forth weekend?

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.