Many people believe that the average number of Facebook

Last updated: 7/7/2022

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: μ 120 not claim H₁: μ> 120 claim This hypotheses test is a one-tailed 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): Compute the test value. Always round z score values to two decimal places.