Many people believe that the average number of Facebook friends is 120. The population standard deviation is 38.3. A random sample of 31 high school students in a particular county revealed that the average number of Facebook friends was 146. At a = 0.01, is there sufficient evidence to conclude that the mean number of friends is greater than 120 ? Part 1 of 5 State the hypotheses and identify the claim with the correct hypothesis. = Ho: " 120 not claim H>120 claim A This hypotheses test is a one-tailed V test. Part 2 of 5 Find the critical value(s). Round the answer to two decimal places. If there is more than one critical value, separate them with commas. Critical value(s): 2.33 Part: 2/5 Part 3 of 5 Compute the test value. Always round z score values to two decimal places. z=