In 2009, investigators were interested in evaluating the relationship between physical activity and being overweight. UsingBRFSS data, they found 100 participants in South Carolina. 69 of these participants were overweight, and the remaining31 were not. The investigators found that 46 participants who were overweight reported low levels of physical activity. Theinvestigators also determined that 22 participants who were not overweight reported high levels of physical activity. QUESTION 5If the prevalence ratio for the study above equaled 1.63, and the 95% confidence interval (CI) was 1.12 to 2.36, isthe study result statistically significant?YesO No

A Confidence interval for the mean is a way of estimating the true population mean. Instead of a…

Answered: If the prevalence ratio for the study…

If the prevalence ratio for the study above equaled 1.63, and the 95% confidence interval (CI) was 1.12 to 2.36, is the study result statistically significant? O Yes O No

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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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

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In 2009, investigators were interested in evaluating the relationship between physical activity and being overweight. Using
BRFSS data, they found 100 participants in South Carolina. 69 of these participants were overweight, and the remaining
31 were not. The investigators found that 46 participants who were overweight reported low levels of physical activity. The
investigators also determined that 22 participants who were not overweight reported high levels of physical activity.

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