Answered: Many people believe that the average…

Name: Many people believe that the average number of Facebook friends is 135
Uploaded: 2024-03-20T07:07:12.000Z
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Description: Many people believe that the average number of Facebook friends is 135. The population standard deviation is 36.2. A random sample of 39 high school students in a particular county revealed that the average number of Facebook friends was 155. At α=0.

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 135. The population standard deviation is 36.2. A random sample of 39 high school students in a particular county revealed that the average number of Facebook friends was 155. At α=0.10, is there sufficient evidence to conclude that the mean number of friends is greater than 135?

A) State the hypotheses and identify the claim with the correct hypothesis.

H₀:

H₁:

This hypotheses test is a _____ test.

B) 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):

C) Compute the test value. Always round z score values to two decimal places.

D) Make the decision.

__________ the null hypothesis.

E) Summarize the results

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