You have a credit card that has a balance of $1,256.34 and a 9.5 apr. a late payment fee of $29.00 is added to the principal if you pay after 5/18. you make a payment for $200.00 on 5/28. how much interest did you pay? a) $8.36 b) $9.95 c) $100.35 d) $119.35

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.