Many people believe that the average number of Facebook friends is 120. The population standard deviation is 39.2. A random sample of 47 high schoolstudents in a particular county revealed that the average number of Facebook friends was 145. At a = 0.01, is there sufficient evidence to conclude that themean number of friends is greater than 120?Part 1 of 5State the hypotheses and identify the claim with the correct hypothesis.Hoμ = 120H₁>120 claimThis hypotheses test is a one-tailedPart: 1 / 5not claim ▼Part 2 of 5▼test.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):XS

Given Sample size n=47, sample mean x̄=145, standard deviations σ=39.2, level of significance ɑ=0.01 population mean μ=120

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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A particular fruit's weights are normally distributed, with a mean of 483 grams and a standard deviation of 23 grams.If you pick 17 fruits at random, then 16% of the time, their mean weight will be greater than how many grams
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