A recent research study reported that the mean daily internet usage among preparatory school students in Saudi Arabia is 140 minutes. Suppose that a random sample of 22 preparatoryschool students in UAE revealed a mean daily internet usage of 125 minutes with a standard deviation of 25 minutes. If the internet usage times have normal distribution, can it beconcluded that preparatory school students in UAE spend less time on Internet compared to their peers in Saudi Arabia? Use 1% significance level.State the hypothesis, calculate the statistical test (Round to three decimal places), find the p-value (Round to three decimal places) then write your conclusion in the context of theproblem.For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).

From the provided information, Sample size (n) = 22 Sample mean (x̄) = 125 Sample standard deviation…

Answered: A recent research study reported that…

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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The mean age when smokers first start is 13 years old with a population standard deviation of 1.8 years. A researcher thinks that smoking age has significantly changéd since the invention of ENDS-electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 31 smokers found that their mean starting age was 12.2 years old. Do the data support the claim at the 5% significance level? What are the correct hypotheses? Ho: Select an answerv?v уears Ha: Select an answerv?v years The test is: O Two-tailed O One-tailed Suhmit Ouaction 8. y W e %24
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The mean age when smokers first start is 13 years old with a population standard deviation of 1.9 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS-electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 31 smokers found that their mean starting age was 12.3 years old. Do the data support the claim at the 5% significance level? What are the correct hypotheses? Ho: Select an answer v ? v years H1: Select an answer v years Based on the hypotheses, find the following: Test Statistic z = (Round to 4 decimal places.) Critical Values = + (Round to 2 decimal places.) Based on the above we choose to Select an answer The correct summary would be: Select an answer that the mean age smokers first start is different than 13.
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The mean age when smokers first start is 13 years old with a population standard deviation of 1.9 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS- electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 30 smokers found that their mean starting age was 12.2 years old. Do the data support the claim at the 1% significance level? What are the correct hypotheses? Ho: Select an answer v ? v years H3: Select an answer v years The test is: O One-tailed O Two-tailed
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