A recent Nielsen analysis found that the typical U.S. smartphone user is spending an average of 220 minutes per day using apps. We speculate that the average time spent using apps for Generation X smartphone users (aged 41-56 years) is less than the national average. The hypotheses are Ho: H = 220 minutes versus Ha: H< 220 minutes. Summary results from R are provided. Summary Statistics Std. Dev (s) Mean Sample Size (n) 205 minutes 63.25 minutes 31
A recent Nielsen analysis found that the typical U.S. smartphone user is spending an average of 220 minutes per day using apps. We speculate that the average time spent using apps for Generation X smartphone users (aged 41-56 years) is less than the national average. The hypotheses are Ho: H = 220 minutes versus Ha: H< 220 minutes. Summary results from R are provided. Summary Statistics Std. Dev (s) Mean Sample Size (n) 205 minutes 63.25 minutes 31
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 recent Nielsen analysis found that the typical U.S. smartphone user is spending an average of 220 minutes per day using apps. We speculate that the
average time spent using apps for Generation X smartphone users (aged 41-56 years) is less than the national average. The hypotheses are Ho: H = 220
minutes versus Ha: µ < 220 minutes. Summary results from R are provided.
Summary Statistics
Std. Dev (s)
Mean
Sample Size (n)
205 minutes
63.25 minutes
31](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2ebcb279-53e1-4c05-a61c-f70aa205701b%2F86f4f5a1-f5d2-4dd9-858a-b573d88c5929%2Fx3mj8a9_processed.png&w=3840&q=75)
Transcribed Image Text:A recent Nielsen analysis found that the typical U.S. smartphone user is spending an average of 220 minutes per day using apps. We speculate that the
average time spent using apps for Generation X smartphone users (aged 41-56 years) is less than the national average. The hypotheses are Ho: H = 220
minutes versus Ha: µ < 220 minutes. Summary results from R are provided.
Summary Statistics
Std. Dev (s)
Mean
Sample Size (n)
205 minutes
63.25 minutes
31
![Identify which of the following are the correct symbol and value for the test statistic.
t = -0.237
Z = -0.237
t = -1.320
Z = -1.320](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2ebcb279-53e1-4c05-a61c-f70aa205701b%2F86f4f5a1-f5d2-4dd9-858a-b573d88c5929%2Fmyk57m_processed.png&w=3840&q=75)
Transcribed Image Text:Identify which of the following are the correct symbol and value for the test statistic.
t = -0.237
Z = -0.237
t = -1.320
Z = -1.320
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