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e) Describe the gas mileage of the worst 2.5% of cars. The worst 2.5% of cars get less than (Type an integer or a decima less mpg. √i (1,1) More

e) Describe the gas mileage of the worst 2.5% of cars. The worst 2.5% of cars get less than (Type an integer or a decima less mpg. √i (1,1) More

MATLAB: An Introduction with Applications
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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< Environmental Protection Agency (EPA) fuel economy estimates for automobile models tested recently predicted a mean of 24.81 mpg and a standard deviation of 6.19 mpg for highway driving. Assume that a Normal model can be applied. Use the 68-95-99.7 Rule to complete parts a through e. b) In what interval would you expect the central 95% of autos to be found? Using the 68-95-99.7 Rule, the central 95% of autos can be expected to be found in the interval from 12.43 to 37.19 mpg. (Type integers or decimals. Do not round. Use ascending order.) c) About what percent of autos should get more than 31.00 mpg? Using the 68-95-99.7 Rule, about 16% of autos should get more than 31.00 mpg. (Type an integer or a decimal. Do not round.) d) About what percent of autos should get between 31.00 and 37.19 mpg? Using the 68-95-99.7 Rule, about 13.5 % of autos should get between 31.00 and 37.19 mpg. (Type an integer or a decimal. Do not round.) e) Describe the gas mileage of the worst 2.5% of cars. The worst 2.5% of cars get less than (Type an integer or a decima ... less mpg. √ L₁ (,) More
Transcribed Image Text:< Environmental Protection Agency (EPA) fuel economy estimates for automobile models tested recently predicted a mean of 24.81 mpg and a standard deviation of 6.19 mpg for highway driving. Assume that a Normal model can be applied. Use the 68-95-99.7 Rule to complete parts a through e. b) In what interval would you expect the central 95% of autos to be found? Using the 68-95-99.7 Rule, the central 95% of autos can be expected to be found in the interval from 12.43 to 37.19 mpg. (Type integers or decimals. Do not round. Use ascending order.) c) About what percent of autos should get more than 31.00 mpg? Using the 68-95-99.7 Rule, about 16% of autos should get more than 31.00 mpg. (Type an integer or a decimal. Do not round.) d) About what percent of autos should get between 31.00 and 37.19 mpg? Using the 68-95-99.7 Rule, about 13.5 % of autos should get between 31.00 and 37.19 mpg. (Type an integer or a decimal. Do not round.) e) Describe the gas mileage of the worst 2.5% of cars. The worst 2.5% of cars get less than (Type an integer or a decima ... less mpg. √ L₁ (,) More
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