MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A social media app is conducting a study on the amount of time users spend on the app. They collect the following variables.
1. Age Years: How old they are in years?
2. Income: Monthly Income
3. Location: What country do they live in?
4. Device: Do they use an iPhone, Samsung, other?
5. Service: Who provides their mobile phone service? For example: T-Mobile, At&t, Verizon, ect
6. Hours: How many hours do they spend on the app per week.
Which variable could the research construct a one proportion z-interval for? And Why would you choose that variable?
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