Standard Questions 1
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Tim owned n sheep and Sue had exactly 5 times as many sheep as Tim.
Tim buys 20 extra sheep and Sue sells 9 of her sheep.
Sue still has more sheep than Tim.
Form an inequality, in terms of n.
Solve the inequality to find the least value of n.
You must show all your working.
Your final line must begin with: least value of n is​

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.