NB: Use the formula : y=a + bx to find the liner regression b.The number of disk drives (in millions) made at a plant in China during the past 5 years follows:YearDisc Drives11402160319042005210i. Forecast the number of disk drives to be made next year, using linear regression.

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Answered: b. The number of disk drives (in…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Explain how the coefficient of multiple determination, R2, is used as a descriptive measure in multiple linear regression.
Explain what the Coefficient of Determination (R2: R squared) is, and explain how the measure is used for Linear Regression models.
For a linear regression b1 is the estimated y-intercept, and b0is the estimated slope of the regression line. True or False
PART 2
q5
Use the time/tip data from the table below, which includes data from New York City taxi rides. (The distances are in miles, the times are in minutes, the fares are in dollars, and the tips are in dollars.) Find the regression equation, letting time be the predictor (x) variable. Find the best predicted tip for a ride that takes 20 minutes. How does the result compare to the actual tip amount of $4.55? Distance 0.68 2.47 12.71 1.80 1.02 8.51 1.32 1.40 6.00 18.00 27.00 25.00 8.00 31.00 8.00 18.00 6.30 14.30 36.80 16.30 7.80 31.75 7.80 12.30 1.89 4.29 0.00 1.50 2.34 2.98 0.00 2.46 Time Fare Tip The regression equation is y=+ X (Round the y-intercept to two decimal places as needed. Round the slope to four decimal places as needed.) The best predicted tip for a ride that takes 20 minutes is $ (Round to the nearest cent as needed.) How does the result compare to the actual tip amount of $4.55? O A. The best predicted value is close to the actual tip of $4.55. O B. The best predicted value…
please solve: F and G ch 12
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b. The number of disk drives (in millions) made at a plant in China during the past 5 years follows: Year Disc Drives 1 140 2 160 3 190 4 200 5 210 i. Forecast the number of disk drives to be made next year, using linear regression.