The article The Undrained Strength of Some Thawed Permafrost Sols contained the accompanying data on the following. y-shear strength of sandy) -depth (m) The predicted values and residuals were computed using the estimated regression equation 9-145.41-14.24, 12.70, +0.079,-0.236+0.441 14.7 9.0 31.6 23.83 48.0 36.5 27.1 25.6 36.7 25.8 10.0 6.0 39.2 —— 16.0 7.0 39.3 14.57 - 16.8 7.0 36.4 16.88 20.7 7.4 34.0 38.8 8.3 33.7 16.9 6.4 28.0 ** Predicted y Residual -9.13 27.0 8.1 33.0 16.0 4.6 26.4 24.9 9.8 37.9 7.3 2.8 34.5 B 12.8 1.9 36.3 SSResid SSRegr The value The value 26.46 10.77 The value The value 23.38 25.07 16.23 S 24.31 15.06 28.64 AM 15.08 15.04 8.15 0.93 -0.86 -0.77 1.43 -0.06 13.73 0.67 2.00 (4) Use the given information to calculate SSResid, SST, and SSReg (Round your answers to four decimal places) SST-X 0.94 -3.74 -7.76 -7371 4.65 (0) Calculate for this regression model. (Round your answer to three decimal places) R²-[ x How would you interpret this value? gives the percentage of observed variation in water content that can be explained by the fitted model. gives the percentage of observed variation in shear strength of sandy soll that can be explained by the fitted model gives the percentage of water content values in the sample that are equal to the values predicted by the model gives the percentage of shear strength of sandy soll values in the sample that are equal to the values predicted by the model () Use the value of R² from part (b) and a 0.05 level of significance to carry out a model utility test. Calculate the test statistic. (Round your answer to two decimal places) Use technology to calculate the value. (Round your answer to four decimal places) P-value- What can you condude? Fall to reject H. We have convincing evidence that the multiple regression model is useful. Reject H. We do not have convincing evidence that the multiple regression model is useful Reject H. We have convincing evidence that the multiple regression model is usefu Fall to reject H. We do not have convincing evidence that the multiple regression model is useful. ✓
The article The Undrained Strength of Some Thawed Permafrost Sols contained the accompanying data on the following. y-shear strength of sandy) -depth (m) The predicted values and residuals were computed using the estimated regression equation 9-145.41-14.24, 12.70, +0.079,-0.236+0.441 14.7 9.0 31.6 23.83 48.0 36.5 27.1 25.6 36.7 25.8 10.0 6.0 39.2 —— 16.0 7.0 39.3 14.57 - 16.8 7.0 36.4 16.88 20.7 7.4 34.0 38.8 8.3 33.7 16.9 6.4 28.0 ** Predicted y Residual -9.13 27.0 8.1 33.0 16.0 4.6 26.4 24.9 9.8 37.9 7.3 2.8 34.5 B 12.8 1.9 36.3 SSResid SSRegr The value The value 26.46 10.77 The value The value 23.38 25.07 16.23 S 24.31 15.06 28.64 AM 15.08 15.04 8.15 0.93 -0.86 -0.77 1.43 -0.06 13.73 0.67 2.00 (4) Use the given information to calculate SSResid, SST, and SSReg (Round your answers to four decimal places) SST-X 0.94 -3.74 -7.76 -7371 4.65 (0) Calculate for this regression model. (Round your answer to three decimal places) R²-[ x How would you interpret this value? gives the percentage of observed variation in water content that can be explained by the fitted model. gives the percentage of observed variation in shear strength of sandy soll that can be explained by the fitted model gives the percentage of water content values in the sample that are equal to the values predicted by the model gives the percentage of shear strength of sandy soll values in the sample that are equal to the values predicted by the model () Use the value of R² from part (b) and a 0.05 level of significance to carry out a model utility test. Calculate the test statistic. (Round your answer to two decimal places) Use technology to calculate the value. (Round your answer to four decimal places) P-value- What can you condude? Fall to reject H. We have convincing evidence that the multiple regression model is useful. Reject H. We do not have convincing evidence that the multiple regression model is useful Reject H. We have convincing evidence that the multiple regression model is usefu Fall to reject H. We do not have convincing evidence that the multiple regression model is useful. ✓
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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