An auto manufacturing company wanted to investigate how the price of one of its car models depreciateswith ages. The research department at the company took a sample of 8 cars of this model and collectedinformation on the ages (in years) and prices (in hundreds of dollars).6.AgePrice 188.3945021145423699Here is a scatterplot of the data.Age versus price of 8 cars1601401201008060402010AgeA.Is the relationship positive or negative?O positiveO negativePrice (in hundreds ofdollars) B. Use the 2 points (3,99) and (8,18) to calculate a line of fit.Enter the value of the slope, using the exact value.Enter the value of the y intercept, using the exact value.C. Which of the following is the equation of the regression line?Oy = -0.05x -+ 8.49Oy = -16.6x +150.4Oy = 150.4x-16.6correct answer is not givenD. Is it acceptable to use the regression equation to predict the value of a car that is 10 years old?O No, because the value is beyond the limits of the dataO No, because the value would be negative.O Yes, because you can always substitute numbers into an equation.O Yes, because the value of R is very stong.

Answered: Image /qna-images/answer/6af89d6d-e7da-4486-b6b8-7f6aefbc5fa5.jpg

Answered: B. Use the 2 points (3,99) and (8,18)…

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 analysis between cost to build a clinic (in dollars) and clinic size (in square foot) resulted in the following equation: y=75+6x. This implies that if the clinic size is 800 square feet, then the cost to build a clinic (in dollars) is?
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Answer a-c thank you
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Different hotels in a certain area are randomly selected, and their ratings and prices were obtained online. Using technology, with x representing the ratings and y representing price, we find that the regression equation has a slope of 135 and a y-intercept of -373. Complete parts (a) and (b) below. a. What is the equation of the regression line? Select the correct choice below and fill in the answer boxes to complete your choice. O A. y=] + ()& OB. -+x O D. y=+ ()× b. What does the symbol y represent? O A. The symbol y represents the average price of hotels in the area O B. The symbol y represents the expected price when the hotel's rating is 0. O C. The symbol y represents the predicted value of price. O D. The symbol y represents the amount that price increases with a 1-point increase in rating.

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