Exhibit 14-25You are given the following information about x and y.Independent Variable Dependent Variable37367O 5.4508.070¹O-1.3286738نهاRefer to Exhibit 14-25. The least squares estimate of bo (intercept)equals_

Given data: X Y 3 8 7 6 3 7 6 3 7 8

Answered: Exhibit 14-25 You are given the…

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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We want to write the least-squares equation ý a+ bx, using the given printout. Predictor Coef SE Coef Constant 316.27 28.31 11.24 0.002 Elevation -32.660 3.511 -8.79 0.003 S 11.0603 R-iq 95.1N Recall that a is the intercept and b is the slope of the line. Since the elevation is the explanatory variable, x, the coefficient of the x-term is the slope of the line. From the printout, this corresponds to the table value in the "Elevation" row, and "Coef" column. Therefore, The intercept is given by the value of the constant term. There is no variable, but the Minitab printout classifies this value as a "coefficient." (Note: This may or may not coincide with your previous experience with the terms "constant" and "coefficient," but it is mathematically correct for reasons that we will not explore in this tutorial.) The value in the "Constant" row and "Coef" column is 316.27, Therefore, a Substitute these values into the least-square equation. 9 -a+ bx
You are given the following information about y and x. y Dependent Variable Independent Variable Oa. 1 Ob. 5 Oc. -1 Od. 6 5 4 X 3 2 1 1 2 3 4 5 The least squares estimate of b₁ (slope) equals
The final 2 parts of 5he question is (e) Find the value of the coefficient of determination r2. What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? What percentage is unexplained? (Round your answer for r2 to three decimal places. Round your answers for the percentages to one decimal place.) r2 = explained % unexplained % (f) For a neighborhood with x = 30 hundred jobs, how many are predicted to be entry level jobs? (Round your answer to two decimal places.) hundred jobs
please answer sections d and e
Report the equation of the regression line and interpret it in the context of the problem
Given the Information, find the equation for the least squares line as well as the correlation coefficient. (Round your values to two decimal places.) n= 10, 57, r-1,E-13, - 353, 45 -0.665x +3.8905 r0 53 Need Help? Read it Additional Materials Tech Guide Excel Tech Guide TI-83/84 OTech Guide THNspire
Exhibit 14-25 You are given the following information about x and y. Independent Variable Dependent Variable 0.321 -0.321 Refer to Exhibit 14-25. The least squares estimate of b₁ (slope) equals -5.78 3 7 1.56 3 6 7 8 6 7 3 8
Complete parts (a) through (h) for the data below. 30 40 50 60 70 y 90 87 82 74 Question Help v 62 (c) Graph the line found in part (b) on the scatter diagram. Choose the correct graph below. O A. OB. Ay 80- OC. Ay 80- OD. Av 20- 20 20 80 100 (d) By hand, determine the least-squares regression line. /Dound to throo donimal lncon an nondod Click to select your answer(s). M acer 9 esc # 2$ 6. 4 3 e W k h
Find the equation of the least-squares line for the given data. Draw a scatter diagram for the given data and graph the least-squares line. x 1, 3, 5, 7, 9 y 9, 7, 6, 3 ,2
Please answer both subparts with explanation . Without using Excel. I will really upvote. Thanks

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Exhibit 14-25 You are given the following information about x and y. Independent Variable Dependent Variable 5.45 3 7 3 6 7 نما 8.07 نما Refer to Exhibit 14-25. The least squares estimate of bo (intercept)equals 8 6 7 3 8