8.2 Traditional Methods

Many people believe that the average number of Facebook friends is 150. The population standard deviation is 37. A random sample of 50 high school students in a particular county revealed that the average number of Facebook friends was 160. At a = 0.01, is there sufficient evidence to conclude that the mean number of friends is greater than 150? Part: 0 / 5 Part 1 of 5 State the hypotheses and identify the claim with the correct hypothesis. Ho: (Choose one) H H1: (Choose one) 0=0 0*0 This hypotheses test is a (Choose one) test. XFind the critical value(s). Round the answer to two decimal places. If there is more than one critical value, separate them with commas. X Critical value(s): -2.326, 2.326