1. In a certain type of metal test specimen, the normal stress on a specimen is known to befunctionally related to the shear resistance. The following data is a set of coded experimentaldata on the two variables:Normal stressShear stress26.826.525.427.328.924.223.627.127.723.623.925.924.726.3226.921.727.421.422.625.825.624.9a. Validate the claim that the shear stress is influenced by the normal stress by testing the linearcorrelation of the two variables.b. If there is a linear correlation, based on your computation in letter (a), construct a simple linearregression model. Otherwise, disregard this question and the next question.c. Estimate the shear resistance when the normal stress is 25.0

Answered: 1. In a certain type of metal test…

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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Estimate the shear resistance for a normal stress of 24.5
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In a certain type of metal test specimen, the normal stress on a specimen is known to be functionally related to the shear resistance. The following is a set of coded experimental data on the two variables: Normal Stress, x Shear Resistance, y 16 5 6. 12 8 9 4 15 7 7 (a) estimate the regression line (b) estimate the shear resistance for a normal stress of 10 (c) evaluate the unbiased estimate of the variance (d) a 95% confidence interval for the mean shear resistance when x = 10; (e) a 95% prediction interval for a single predicted value of the shear resistance when x = 10. WORK THIS ENTIRE PROBLEM WITH ALL 5 PARTS ,BEFORE PROCEEDING TO THE NEXT PROBLEM WRITE EVERYTHING DOWN ON YOUR ANSWER SHEETS. As.you proceed to the other problems, you will encounter this entire problem 4 more times. Each time you will be given a chance to answer a problem part. This time select your answer to part c)
In a certain type of metal test specimen, the normal stress on a specimen is known to be functionally related to the shear resistance. The following is a set of coded experimental data on the two variables: Normal Stress, x Shear Resistance, y 26.8 25.4 28.9 23.6 27.7 23.9 24.7 28.1 26.9 27.4 22.6 25.6 26.5 27.3 24.2 27.1 23.6 25.9 26.3 22.5 21.7 21.4 25.8 24.9 Estimate the B1.

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