Many people believe that the average number of Facebook friends is 145. The population standard deviation is 36.6. Arandom sample of 46 high school students in a particular county revealed that the average number of Facebook friends was149. At a = 0.01, is there sufficient evidence to conclude that the mean number of friends is greater than 145?Part 1 of 5State the hypotheses and identify the claim with the correct hypothesis.Ho:(Choose one)O Part 4 of 5Make the decision.(Choose one)the null hypothesis.Part: 4 /5Part 5 of 5Summarize the results.There (Choose one) v enough evidence to support the claim that the mean number ofFacebook friends is greater than 145.

GivenMean(x)=149standard deviation(σ)=36.6sample size(n)=46α=0.01

Answered: Many people believe that the average…

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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In high school X, approximately 9 percent of the students saw a certain movie on opening night. From a random sample of 200 students from high school Y, 22 saw the movie on opening night. Consider a hypothesis test to investigate whether the proportion of all students in high school Y who saw the movie on opening night is greater than that of high school X. Which of the following is the standard deviation used to calculate the test statistic for the one-sample z-test? the standard deviation used to calculate the test statistic for the one-sample z-test? Here Are the provided answer choices
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