Question

For each description of data, identify Who and What were investigated and the Population of interest. Candy bars A look at 515 participants found that participants who ate two or more candy bars a day "experienced waist size increases six times greater than those of people who didn't eat the candy bars."

Name: Problem 19, Chapter 1: Stats Data and Models
Uploaded: 2022-10-25T23:09:50-08:00
Duration: 1 min 3 s
Channel: James Kiss
Description: For each description of data, identify Who and What were investigated and the Population of interest. Candy bars A look at 515 participants found that participants who ate two or more candy bars a day "experienced waist size increases six times greater than those of people who didn't eat the candy bars."

   For each description of data, identify Who and What were investigated and the Population of interest.
Candy bars A look at 515 participants found that participants who ate two or more candy bars a day "experienced waist size increases six times greater than those of people who didn't eat the candy bars."

Stats Data and Models

Richard D. De Veaux,… 4th Edition

Chapter 1, Problem 19

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Solved by Expert James Kiss

10/25/2022

Step 1

In this case, the "Who" refers to the subjects of the study or the individuals whose data was collected and analyzed. From the given description, we can see that the "Who" is the 515 participants in the study. Show more…

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For each description of data, identify Who and What were investigated and the Population of interest. Candy bars A look at 515 participants found that participants who ate two or more candy bars a day "experienced waist size increases six times greater than those of people who didn't eat the candy bars."

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Key Concepts

Exposure and Outcome Variables

This concept refers to distinguishing the independent variable (or exposure), which is the characteristic or behavior being examined, from the dependent variable (or outcome), which is the effect or result measured. In research, clear identification of these variables is crucial for understanding the relationship studied.

Descriptive Analysis in Observational Research

This involves summarizing and interpreting data as it is collected from the study population without manipulation. It includes understanding how specific behaviors or exposures are linked to specific outcomes, and it is central to the process of drawing preliminary conclusions about potential associations.

Population of Interest

This concept involves identifying the group of individuals that the research is focused on. It defines the subset of the overall population from which data are collected and to which the research findings are intended to generalize.

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