The chart below provides mileage data for various cars. Note the helpful information at thebottom of the chart. Use the given information and the formulas in this chapter to calculate:o a. the value of the slopeo b. the value of the y-interceptC. Verify that your answers are correct by comparing them to the given regression equationn=19x (City MPG)y (Highway MPG)23Acura NSX18Alpha Romeo Spider2230Chevrolet Corvette1725Dodge ViperFerrari 348TB/Spider14221318Honda Civic Del Sol2936Honda Civic Del Sol3541Honda Civic Del Sol2633Honda Civic Del Sol293521Jaguar XJS ConvertibleLotus Esprit Turbo141727Mazda MX-5 Miata2328Mazda MX-5 Miata2227Mazda RX-71824Mercedes Benz SL3201724Nissan 300ZX1823Porsche 911 Carrera1623Porsche 968162527Toyota MR2SUMS:2038451226.94737Sample MeanSample Standard Deviation 5.92151420.210535.787666y = 0.9478x + 7.7919Miles per GallonR= 0.96974540353025201510515202530354010City MPGHighway MPG

Data : Cars x(City MPG) y(Highway MPG) 1 18 23 2 22 30 3 17 25 4 14 22 5 13 18 6 29…

Answered: The chart below provides mileage data…

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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Suppose Ms. Carr is interested in the relationship between her students' 9th grade math final exam scores and the number of hours they spent studying during the year. She collects information for 15 ninth grade students and uses it to obtain the regression equation, where ?x is the number of hours spent studying during the year and ?̂ is the predicted final exam score. ?̂ =1.48?+75.64 The scatter plot displays her results. What is the predicted ?̂ value when a student spends 13 hours studying? Round your answer to one decimal place. Select the correct interpretation. The above predicted value of ?̂ is the predicted final math test score if a student studies 13 hours during the year. the predicted score of 13 out of 15 students. what any student will score on the final exam if they study at least 13 hours. the math final test score that 13 students beat.
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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b. What does the symbol y represent? O A. The symbol y represents the predicted value of price. O B. The symbol y represents the amount that price increases with a 1-point increase in rating. O C. The symbol y represents the expected price when the hotel's rating is 0. O D. The symbol y represents the average price of hotels in the area.
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 120 and a y-intercept of - 369. 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. A. V= O B. y = O C. ý= O D. y =
please quickly thanks !!!!
Please solve what’s not filled in.
a. Using the pairs of values for all 10 points, find the equation of the regression line. b. After removing the point with coordinates (2,3), use the pairs of values for the remaining 9 points and find the equation of the regression line. c. Compare the results from parts (a) and (b).
Using the weights (Ib) and highway fuel consumption amounts (mi/gal) of the 48 cars listed in the accompanying data set, one gets this regression equation: y = 58 9-0.00749x, where x represents weight Complete parts (a) through (d). Click the icon to view the car data. 東 b. What are the specific values of the slope and y-intercept of the regression line? O A. The slope is 58.9 and the y-intercept is 0.007499. B. The slope is -0.00749 and the y-intercept is 58.9. O C. The slope is 58.9 and the y-intercept is -0.00749. O D. The slope is 0.00749 and the y-intercept is 58.9. c. What is the predictor variable? O A. The predictor variable is highway fuel consumption, which is represented by x. B. The predictor variable is weight, which is represented by x. O C. The predictor variable is weight, which is represented by y O D. The predictor variable is highway fuel consumption, which is represented by y. d. Assuming that there is a significant linear correlation between weight and highway fuel…
Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary.
Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. The table shows the shoe size and heights (in.) for 6 men. Shoe size, x Height, y Find the regression equation. ŷ=x+ (Round to three decimal places as needed.) Choose the correct graph below. O A. Height (in.) 75+ 65- 8 Shoe size N O B. Height (in.) 75+ 65+ 8.5 65.0 Shoe size 9.5 66.0 o 11.0 67.0 O C. Height (in.) 75 65 8 Shoe size 12.0 73.0 Q 13.0 71.0 D. Height (in.) 75- 65 13.5 73.0 Shoe size Q o
n 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. The data below shows the relationship between the number of years that applicants have studied a particular language and the grades they received on the proficiency exam. Find the equation of the regression line for the data. given Number of years, x 4 5 3 6 2 7 3 Grades on test, y 61 68 75 82 73 90 58 93 72 O A. y 6.910x+46.261 O B. -46.261x +6.910 O C. =6.910x-46.261 O D. = 46.261x-6.910 Next Time Remaining: 01:02:25 74°F Mostly 五 TTL

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