Need help with D and E. 1. The EPA fuel economy estimates for automobile models tested recently predicted a mean of 24.8mpg and a standard deviation of 6.2 mpg for highway driving.a. About what percent of cars get less than 31 mpg? About 84.13% of cars get less than 31mpg.b. What percent of cars get more than 20 mpg? 77.94% of cars get more than 20 mpg.C. What percent of cars get between 22 and 30 mpg? 47.32% of cars get between 22 and 30mpg.d. What gas mileage represents the 75th percentile?e. What gas mileages separate the bottom 3% and top 3% of cars?

Mean=M=24.8, Standard deviation=S=6.2

Answered: d. What gas mileage represents the 75th…

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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You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). x 1 5 11 16 26 36 y 39 47 73 100 150 200 Complete parts (a) through (e), given Σx = 95, Σy = 609, Σx2 = 2375, Σy2 = 81,559, Σx y = 13,777, and r ≈ 0.997. The calves you want to buy are 10 weeks old. What does the least-squares line predict for a healthy weight (in kg)? (Enter a number. Round your answer to two decimal places.) kg
Part 4 please
You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). x 3 4 12 16 26 36 y 42 54 77 100 150 200 Complete parts (a) through (e), given Σx = 97, Σy = 623, Σx2 = 2397, Σy2 = 83,109, Σxy = 13,966, and r ≈ 0.997. A) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your answers for x and y to two decimal places. Round your answers for a and b to three decimal places.) x = y = = + x B) 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…
You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). x 1 5 11 16 26 36 y 39 47 73 100 150 200 Complete parts (a) through (e), given Σx = 95, Σy = 609, Σx2 = 2375, Σy2 = 81,559, Σx y = 13,777, and r ≈ 0.997. (a) Make a scatter diagram of the data. (Select the correct graph.) (b) Verify the given sums Σx, Σy, Σx2, Σy2, Σx y, and the value of the sample correlation coefficient r. (For each answer, enter a number. Round your value for r to three decimal places.) Σx = Σy = Σx2 = Σy2 = Σx y = r = (c) Find , and . Then find the equation of the least-squares line = a + b x. (For each answer, enter a number. Round your answers for and to two decimal places. Round your answers for a and b to three decimal…
You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). 11 16 26 36 y 39 47 73 100 150 200 Complete parts (a) through (e), given Ex = 95, Ey = 609, Ex² = 2375, Ey? = 81,559, Ex y = 13,777, and rz 0.997.
You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). x 1 5 11 16 26 36 y 39 47 73 100 150 200 Complete parts (a) through (e), given Σx = 95 Σy = 609 Σx2 = 2375 Σy2 = 81,559 Σx y = 13,777 r ≈ 0.997 b) Verify the given sums Σx, Σy, Σx2, Σy2, Σx y, and the value of the sample correlation coefficient r. (For each answer, enter a number. Round your value for r to three decimal places.) Σx = Σy = Σx2 = Σy2 = Σx y = r = (c) Find , and . Then find the equation of the least-squares line = a + b x. (For each answer, enter a number. Round your answers for and to two decimal places. Round your answers for a and b to three decimal places.) = x bar = = y bar = = value of a coefficient + value of b coefficient x…
I need help on all parts please
You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). x 3 3 12 16 26 36 y 42 50 71 100 150 200 Complete parts (a) through (e), given Σx = 96, Σy = 613, Σx2 = 2390, Σy2 = 81,805, Σxy = 13,828, and r ≈ 0.993. (a) Draw a scatter diagram displaying the data. Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website. (b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy, and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.) Σx = Σy = Σx2 = Σy2 = Σxy = r = (c) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your answers for x and y to two decimal places. Round your…
I'm having an issue with question d the P value.
Can you help me with d?
X Frequency 12 a. Construct a histogram for the data with 7 bars 2 1 3 3 4 14 5 15 b. Describe the shape of your histogram c. What does the histogram show us? 7 10 8 5
You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). x 3 4 12 16 26 36 y 37 46 77 100 150 200 Complete parts (a) through (e), given Σx = 97, Σy = 610, Σx2 = 2397, Σy2 = 81,914, Σxy = 13,919, and r ≈ 0.999. (b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy, and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.) Σx = ? Σy = ? Σx2 = ? Σy2 = ? Σxy = ? r = ? (c) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your answers for x and y to two decimal places. Round your answers for a and b to three decimal places.) x =? y =? y =?+?x (e) Find the value of the coefficient of determination r2. What percentage of the variation in y can be…

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d. What gas mileage represents the 75th percentile? e. What gas mileages separate the bottom 3% and top 3% of cars?