A student fits two linear model functions to their data on a scatterplot. A line with a slope of 2.5 and y-intercept of 0.4 has a chi-squared of 23. A line with a slope of 2.6 and y-intercept of 0.3 has achi-squared of 11. Which of the following responses would bejustified?y = 2.5x + 0.4 fits the data better than y = 2.6x + 0.3y = 2,5x + 0,4 fits the data about the same as y = 2.6x + 0.3The data are linear.y 2.5x + 0.4 fits the data worse than y = 2.6x + 0.3

Chi-square test has got multiple usefulness.

Answered: A student fits two linear model…

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 regression was run to determine if there is a relationship between hours of TV watched per day (x) and number of situps a person can do (y).The results of the regression were:y=ax+b a=-0.96 b=35.944 r2=0.736164 r=-0.858 Use this to predict the number of situps a person who watches 10.5 hours of TV can do (to one decimal place)
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You build a linear model to predict Calc2 grades from Calc1 grades. Residuals: Min: -17.674 1Q: -6.759 Median: 0.899 3Q: 6.725 Coefficients: Estimate Std. Error t value (Intercept) 11.866 12.6782 gradeCalc1 0.9581 0.4149 2.309 Residual standard error: 11.299 on 98 degrees of freedom Multiple R-squared: 8.98, Adjusted R-squared: 8.531 F-statistic: 50 on 1 and 98 DF, p-value: 2.290764244961E-10 Max: 15.674 Pr(>It|) 0.1746 0.0105
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A student fits two linear model functions to their data on a scatter plot. A line with a slope of 2.5 and y-intercept of 0.4 has a chi- squared of 23. A line with a slope of 2.6 and y-intercept of 0.3 has a chi-squared of 11. Which of the following responses would be justified?