MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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1)TikTok users spend an average of 55 minutes per day using the app.  A researcher believes the time spend is less among teenager users. A random sample of 61 TikTok teenager users resulted in a sample mean daily use of 50 minutes, and a sample standard deviation of 12.5 minutes. Is there enough evidence to support the researcher’s claim? Use a level of significance of 5%. PLEASE SHOW ALL WORK FOR ALLL PARTS AND EXPLAIN THE ANSWER SO I CAN UNDERSTAND BETTER THANK YOU!

a.)The null hypothesis is: .

b.)The alternative hypothesis is: 

c.)The test statistic is: 

d.)The critical value is: 

e.)Can you reject the null hypothesis? Yes or No. 

f.)State your conclusion in the context of the problem: 

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d.)The critical value is: 

e.)Can you reject the null hypothesis? Yes or No. 

f.)State your conclusion in the context of the problem:

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d.)The critical value is: 

e.)Can you reject the null hypothesis? Yes or No. 

f.)State your conclusion in the context of the problem:

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