Do wearable devices that monitor diet and physical activity help peoplelose weight? Researchers had 237 subjects, already involved in a programof diet and exercise, use wearable technology for 24 months. Theymeasured their weight (in kilograms) before using the technology and 24months after using the technology.Explain why the proper procedure to compare the mean weight beforeusing the wearable technology and 24 months after using the wearabletechnology is a matched pairs t test. Choose the correct explanation.O a. A person's weight before and after wearing the device would not beindependent; thus, the data from this before and after study should be analyzedusing a matched pairs t test.O b.A person's weight before and after wearing the device would be independent:thus, the data from this before and after study should be analyzed using amatched pairs t test.C. A person's weight before and after wearing the device would not beindependent; thus, the data from this before and after study should not beanalyzed using a matched pairs t test.O d. A person's weight before and after wearing the device would be

A paired t test would be used to check the significant mean difference between two groups.

Answered: Do wearable devices that monitor diet…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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