Diego's history teacher writes a test for the class with 26 questions. the test is worth 123 points total and has two types of questions: multiple choice worth 3 points each, and essays worth 8 points each. How many essay questions are there on the test? Explain or show your reasoning. PLEASE DO NOT PUT ANY TYPE OF FILE

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.