Question

The Environmental Protection Agency rates the mean highway gas mileage of the 2017 Chevrolet Sonic to...

  1. The Environmental Protection Agency rates the mean highway gas mileage of the 2017 Chevrolet Sonic to be 28 miles per gallon. Assume the standard deviation is 3 miles per gallon. A rental car company buys 50 of these cars.
    1. What is the probability that the mean gas mileage of the rental fleet is less than 27.5 miles per gallon?
    2. Find the 70th percentile of the mean mileage for the rental fleet. Round your answer to two decimal digits.
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The Environmental Protection Agency (EPA) rates the mean highway gas mileage of the 2017 Chevrolet Sonic...
The Environmental Protection Agency (EPA) rates the mean highway gas mileage of the 2017 Chevrolet Sonic to be 28 miles per gallon. Assume the standard deviation is 3 miles per gallon. A rental company bought 60 of these cars. a. What is the probability that the average mileage of the fleet is greater than 27.5 miles per gallon? b. What is the probability that the average mileage of the fleet is between 27 and 27.8 miles per gallon? c. What...
A certain car model has a mean gas mileage of 31 miles per gallon (mpg) with...
A certain car model has a mean gas mileage of 31 miles per gallon (mpg) with a standard deviation 3 mpg. A pizza delivery company buys 43 of these cars. What is the probability that the average mileage of the fleet is greater than 30.7 mph
A certain car model has a mean gas mileage of 31 miles per gallon (mpg) with...
A certain car model has a mean gas mileage of 31 miles per gallon (mpg) with astandard deviation 3 mpg. A pizza delivery company buys 43 of these cars. What is theprobability that the average mileage of the fleet is greater than 30.7 mpg?
In its Fuel Economy Guide for 2014 model vehicles, the Environmental Protection Agency gives data on...
In its Fuel Economy Guide for 2014 model vehicles, the Environmental Protection Agency gives data on 1160 vehicles. There are a number of high outliers, mainly hybrid gas-electric vehicles. If we ignore the vehicles identified as outliers, however, the combined city and highway gas mileage of the other 1134 vehicles is approximately Normal with mean 22.8 miles per gallon (mpg) and standard deviation 5.3 mpg. The quintiles of any distribution are the values with cumulative proportions 0.20, 0.40, 0.60, and...
We expect a car's highway gas mileage to be related to its city gas mileage (in...
We expect a car's highway gas mileage to be related to its city gas mileage (in miles per gallon, mpg). Data for all 1137 vehicles in the government's Fuel Economy Guide give the regression line highway mpg = 6.785 + (1.033 * city mpg) for predicting highway mileage from city mileage. (a) What is the slope of this line? (Enter your answer to three decimal places.) mpg Say in words what the numerical value of the slope tells us. Highway...
The Environmental Protection Agency measures a mean gas mileage for recently tested cars as 24.8 mpg...
The Environmental Protection Agency measures a mean gas mileage for recently tested cars as 24.8 mpg with a standard deviation of 6.2 mpg. The dataset on Fuel economy in StatCrunch gives an average of 24.2 mpg with a standard deviation of 6.5 mpg. Joe’s car is estimated at 30 mpg. (a) Calculate the z-scores to find the relative tab at both sources (the Exercise and the Dataset). (b) Relative to the other cars, with which source will Joe have the...
We expect a car's highway gas mileage to be related to its city gas mileage (in...
We expect a car's highway gas mileage to be related to its city gas mileage (in miles per gallon, mpg). Data for all 1137 vehicles in the government's 2013 Fuel Economy Guide give the regression line highway mpg = 6.785 + (1.033 × city mpg) for predicting highway mileage from city mileage. (a) What is the slope of this line? (Enter your answer to three decimal places.) ____mpg Say in words what the numerical value of the slope tells us....
In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency gives data on...
In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency gives data on 1170 vehicles. There are a number of high outliers, mainly hybrid gas-electric vehicles. If we ignore the vehicles identified as outliers, however, the combined city and highway gas mileage of the other 1146 vehicles is approximately Normal with mean 23.0 miles per gallon and standard deviation 4.9 mpg. The quintiles of any distribution are the values with cumulative proportions 0.20, 0.40, 0.60, and 0.80....
Assume that gas mileage for cars is normally distributed with a mean of 23.5 miles per...
Assume that gas mileage for cars is normally distributed with a mean of 23.5 miles per gallon and a standard deviation of 10 miles per gallon. Show all work. Just the answer, without supporting work, will receive no credit. (a) What is the probability that a randomly selected car gets between 15 and 30 miles per gallon? (Round the answer to 4 decimal places) (b) Find the 75th percentile of the gas mileage distribution. (Round the answer to 2 decimal...
We expect a car’s highway gas mileage to be related to its city gas mileage (in...
We expect a car’s highway gas mileage to be related to its city gas mileage (in mpg). Data for all 12091209 vehicles in the government’s 2016 Fuel Economy Guide give the regression line highway mpg=7.903+(0.993×city mpg)highway mpg=7.903+(0.993×city mpg) for predicting highway mileage from city mileage. (a) What is the slope of this line? (Enter your answer rounded to three decimal places.) slope: What does the numerical value of the slope tell you? Highway gas mileage increases with city gas mileage...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT