A researcher is interested in examining whether the location that a person lives is related to the number of hours that they spend on the internet each week. The researcher collected data from a sample of 30 participants who were classified in one of three groups: (1) 10 people who live in an urban setting, (2) 10 people who live in a suburban setting, and (3) 10 people who live in a rural setting. Each participant reported the number of hours they spend on the internet in a typical week (the dependent variable). The researcher found the following descriptive statistics: Urban participants reported an average of 8.9 hours of internet use per week with a standard deviation of 2.77. Suburban participants reported an average of 12.7 hours of internet use per week with a standard deviation of 4.88. Rural participants reported an average of 9.8 hours of internet use per week with a standard deviation of 2.82. Using the data that was collected, the researcher found the following: The sum of squares between groups is equal to 78.86. The sum of squares within groups is equal to 354.51. what are the degrees of freedom within groups? Enter your answer as a whole number with no decimal places (i.e., 10, not 10.01, not 10.1, not 10.001).

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 researcher is interested in examining whether the location that a person lives is related to the number of hours that they spend on the internet each week. The researcher collected data from a sample of 30 participants who were classified in one of three groups: (1) 10 people who live in an urban setting, (2) 10 people who live in a suburban setting, and (3) 10 people who live in a rural setting. Each participant reported the number of hours they spend on the internet in a typical week (the dependent variable). The researcher found the following descriptive statistics:

Urban participants reported an average of 8.9 hours of internet use per week with a standard deviation of 2.77.
Suburban participants reported an average of 12.7 hours of internet use per week with a standard deviation of 4.88.
Rural participants reported an average of 9.8 hours of internet use per week with a standard deviation of 2.82.

Using the data that was collected, the researcher found the following:

The sum of squares between groups is equal to 78.86.
The sum of squares within groups is equal to 354.51.

what are the degrees of freedom within groups? Enter your answer as a whole number with no decimal places (i.e., 10, not 10.01, not 10.1, not 10.001).

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