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Many people believe that the average number of Facebook friends is 140. The population standard deviation is 37.9. A random sample of 39 high school students in a particular county revealed that the average number of Facebook friends was 152. At a = 0.05, is there sufficient evidence to conclude that the mean number of friends is greater than 140? Part 1 of 5 State the hypotheses and identify the claim with the correct hypothesis. Ho: H - 140 claim H: µ > 140| not claim This hypotheses test is a one-tailed test. Part: 1/5 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): Part: 2 /5 Part 3 of 5 Compute the test value. Always round z score values to two decimal places.

Many people believe that the average number of Facebook friends is 140. The population standard deviation is 37.9. A random sample of 39 high school students in a particular county revealed that the average number of Facebook friends was 152. At a = 0.05, is there sufficient evidence to conclude that the mean number of friends is greater than 140? Part 1 of 5 State the hypotheses and identify the claim with the correct hypothesis. Ho: H - 140 claim H: µ > 140| not claim This hypotheses test is a one-tailed test. Part: 1/5 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): Part: 2 /5 Part 3 of 5 Compute the test value. Always round z score values to two decimal places.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Many people believe that the average number of Facebook friends is 140. The population standard deviation is 37.9. A random sample of 39 high school students in a particular county revealed that the average number of Facebook friends was 152. At a = 0.05, is there sufficient evidence to conclude that the mean number of friends is greater than 140? Part 1 of 5 State the hypotheses and identify the claim with the correct hypothesis. Ho: u = 140 claim H1: H > 140 not claim This hypotheses test is a one-tailed test. Part: 1/5 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): Part: 2 / 5 Part 3 of 5 Compute the test value. Always round z score values to two decimal places.
Transcribed Image Text:Many people believe that the average number of Facebook friends is 140. The population standard deviation is 37.9. A random sample of 39 high school students in a particular county revealed that the average number of Facebook friends was 152. At a = 0.05, is there sufficient evidence to conclude that the mean number of friends is greater than 140? Part 1 of 5 State the hypotheses and identify the claim with the correct hypothesis. Ho: u = 140 claim H1: H > 140 not claim This hypotheses test is a one-tailed test. Part: 1/5 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): Part: 2 / 5 Part 3 of 5 Compute the test value. Always round z score values to two decimal places.
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