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The popularity of computer, video, online, and virtual reality games has raised concerns about their ability to negatively impact youth. Based on a recent survey, 1808 fourteen- to eighteen-year-olds in Connecticut high schools were classified by their average grades and by whether they had or had not played such games. The following table summarizes the findings. The observed and expected counts are given side by side. Observed Expected A's and B's C's D's and F's A's and B's C's D's and F's Played games 736 450 193 717.7 453.1 208.2 Never played games 205 144 80 223.3 140.9 64.8 Find the chi-square statistic, X?. (Use decimal notation. Give your answer to two decimal places.) x? =

The popularity of computer, video, online, and virtual reality games has raised concerns about their ability to negatively impact youth. Based on a recent survey, 1808 fourteen- to eighteen-year-olds in Connecticut high schools were classified by their average grades and by whether they had or had not played such games. The following table summarizes the findings. The observed and expected counts are given side by side. Observed Expected A's and B's C's D's and F's A's and B's C's D's and F's Played games 736 450 193 717.7 453.1 208.2 Never played games 205 144 80 223.3 140.9 64.8 Find the chi-square statistic, X?. (Use decimal notation. Give your answer to two decimal places.) x? =

MATLAB: An Introduction with Applications
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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The popularity of computer, video, online, and virtual reality games has raised concerns about their ability to negatively impact youth. Based on a recent survey, 1808 fourteen- to eighteen-year-olds in Connecticut high schools were classified by their average grades and by whether they had or had not played such games. The following table summarizes the findings. The observed and expected counts are given side by side. Observed Expected A's and B's C's D's and F's A's and B's C's D's and F's Played games 736 450 193 717.7 453.1 208.2 Never played games 205 144 80 223.3 140.9 64.8 Find the chi-square statistic, X² . (Use decimal notation. Give your answer to two decimal places.) x? : II
Transcribed Image Text:The popularity of computer, video, online, and virtual reality games has raised concerns about their ability to negatively impact youth. Based on a recent survey, 1808 fourteen- to eighteen-year-olds in Connecticut high schools were classified by their average grades and by whether they had or had not played such games. The following table summarizes the findings. The observed and expected counts are given side by side. Observed Expected A's and B's C's D's and F's A's and B's C's D's and F's Played games 736 450 193 717.7 453.1 208.2 Never played games 205 144 80 223.3 140.9 64.8 Find the chi-square statistic, X² . (Use decimal notation. Give your answer to two decimal places.) x? : II
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