A Moving to another questiof!Question 27ry.dockProvide an appropriate response.In order for applicants to work for the foreign-service department, they must take a test in the language of the country where they plan to work. Thedata below shows the relationship between the number of years that applicants have studied a particular language and the grades they received on theproficiency exam. Find the equation of the regression line for the given data.DOCKtigationn.LabNumber of years, xGrades on test, yO - 6.910x- 46.261reen Shot--05...3.58 PMO = 46.261x + 6.910O = 46.261x -6.910O - 6,910x + 46.261Sterling's DailyFood Log.pdtWA Moving to another question will save this response.arling's lntakeSQuestion 27 of 28 >GoalsAns and Outs ofEnergy (1).docxScreen Shot22-059.03 AMScreen2022-05 AMScreen Shotx 2022-05.9.31 AM 2022-05.0.09Screen Sho

From the provided information, x y 3 61 4 68 4 75 5 82 3 73…

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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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help with question number 1 and 2 please. 1.The regression equation is ?? (Round to one decimal place as needed.) 2. The best predicted gross for a movie with a $125 million budget is $ million.
Tire pressure (psi) and mileage (mpg) were recorded for a random sample of seven cars of thesame make and model. The extended data table (left) and fit model report (right) are based on aquadratic model. Calculate R2. Describe what this value means in the context of the problem.
Part a: Make a scatter plot and determine which type of model best fits the data.Part b: Find the regression equation.Part c: Use the equation from Part b to determine y when x = 1.5.
The following data show the brand, price ($), and the overall score for six stereo headphones that were tested by a certain magazine. The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from 0 (lowest) to 100 (highest). The estimated regression equation for these data is ŷ = 25.130 + 0.309x, where x = price ($) and y = overall score. Brand Price($) Score A 180 78 B 150 69 C 95 63 D 70 56 E 70 42 F 35 28 (a) Compute SST, SSR, and SSE. (Round your answers to three decimal places.) SST= SSR= SSE= (b) Compute the coefficient of determination r2. (Round your answer to three decimal places.) Comment on the goodness of fit. (For purposes of this exercise, consider a proportion large if it is at least 0.55.) (c) What is the value of the sample correlation coefficient? (Round your answer to three decimal places.)
The following data show the brand, price ($), and the overall score for six stereo headphones that were tested by a certain magazine. The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from 0 (lowest) to 100 (highest). The estimated regression equation for these data is ŷ = 25.130 + 0.309x, where x = price ($) and y = overall score. Brand Price($) Score A 180 76 B 150 73 C 95 63 D 70 54 E 70 40 F 35 24 (a) Compute SST, SSR, and SSE. (Round your answers to three decimal places.) SST= SSR= SSE= (b) Compute the coefficient of determination r2. (Round your answer to three decimal places.) Comment on the goodness of fit. (For purposes of this exercise, consider a proportion large if it is at least 0.55.) (c) What is the value of the sample correlation coefficient? (Round your answer to three decimal places.)
Part two Given the data set below, 3 4 7 7 8. Y 4 7 9 6. 3 Find the scatter plot. 8) Find the equation of the regression line. 9) Find R and R2. 10) What can you say about R and R2. 4. 00

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