The manufacturer of a new compact car claims the miles per gallon (mpg) for the gasoline...
The manufacturer of a new compact car claims the miles per gallon (mpg) for the gasoline consumption is mound-shaped and symmetric with a mean of 24.6 mpg and a standard deviation of 9.5 mpg. If 30 such cars are tested, what is the probability the average mpg achieved by these 30 cars will be greater than 28?
Homework Answers
Add Answer to:
The manufacturer of a new compact car claims the miles per
gallon (mpg) for the gasoline...
SAMPLING DISTRIBUTION The manufacturer of a new compact car claims the miles per gallon (mpg) for...
SAMPLING DISTRIBUTION The manufacturer of a new compact car claims the miles per gallon (mpg) for gasoline consumption is normally distribution with u = 26.3 mpg and standard deviation 6 = 9.0 mpg. A consumer agency is looking to verify the manufacturer's claim. If a sample of 36 cars are tested, what is the probability that the mean mpg 7 is (a) less than 23 mpg? (b) more than 29 mpg? (b) between 23 and 29 mpg?
A car company claims that its compact model gets 31 miles per gallon. A government inspector...
A car company claims that its compact model gets 31 miles per gallon. A government inspector tests 38 of the company cars and finds that the average mileage is 29.7 mpg with a standard deviation of 2.2 mpg. Test if the mileage found is significantly less than the mileage claimed by the company using α = 0.01. (show bell shaped graph)
An automobile manufacturer claims that their car has a 56.7 miles/gallon (MPG) rating. An independent testing...
An automobile manufacturer claims that their car has a 56.7 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this car. After testing 14 cars they found a mean MPG of 56.6 with a standard deviation of 1.1. Is there sufficient evidence at the 0.1 level that the cars underperform the manufacturer's MPG rating? Assume the population distribution is approximately normal. Step 1 of 5: State the null and alternative hypotheses. Answer 2 Points...
Under specified conditions, an automobile manufacturer is concerned about the miles per gallon (mpg) of its...
Under specified conditions, an automobile manufacturer is concerned about the miles per gallon (mpg) of its new compact car. For cars of the same class, the average is 23 with a standard deviation of 5 mpg. To investigate, the manufacturer tested 28 cars in which the average was 19 mpg. What can the car manufacturer conclude with α = 0.05? a) Compute the corresponding effect size(s) and indicate magnitude(s). If not appropriate, input and select "na" below. d = ______...
A certain car model has a mean glass milage of 34 miles per gallon (mpg) with...
A certain car model has a mean glass milage of 34 miles per
gallon (mpg) with a standard deviation 5mpg. A pizza delivery
company buys 43 of these cars. What is the probability that the
average milage of the fleet is greater than 33.5 mpg?
33) A certain car model has a mean gas mileage of 34 miles per gallon (mpg) with a standard deviation 5 mpg. A pizza delivery company buys 43 of these cars. What is the probability...
A car company claims that its compact model gets 33 miles per gallon. A government inspector...
A car company claims that its compact model gets 33 miles per gallon. A government inspector tests 12 of the company cars and finds that the average mileage is 29.9 mpg with a standard deviation of 1.2 mpg. Test if the mileage found is significantly less than the mileage claimed by the company using = 0.01.
Problem 1 (18 points) Suppose the distribution of fuel efficiency (miles per gallon (mpg) in highway...
Problem 1 (18 points) Suppose the distribution of fuel efficiency (miles per gallon (mpg) in highway driving) for a sample of cars has a mound-shaped and symmetric distribution with mean x =38 and standard deviation s = 10 points. Illustrate your answers with graphs. a. Calculate the percent of cars whose fuel efficiency is less than 48 mpg. b. Calculate the percent of scores that are between 28 and 68 mpg. c. Calculate the 16th percentile of the data.
a certain car model has a mean gas mileage of 34 Miles per gallon (mpg) with...
a certain car model has a mean gas mileage of 34 Miles per
gallon (mpg) with a population standard deviation for. A pizza
delivery company buys a sample of 54 of these cars. What is the
probability that the average mileage of the fleet is greater than
33.7 MPG?
Question 14 (3 points) A certain car model has a mean gas mileage of 34 miles per gallon (mpg) with a population standard deviation 4. A pizza delivery company buys a...
Problem 1 (18 points) Suppose the distribution of fuel efficiency (miles per gallon (mpg) in highway...
Problem 1 (18 points) Suppose the distribution of fuel efficiency (miles per gallon (mpg) in highway driving) for a sample of cars has a mound-shaped and symmetric distribution with mean X =38 and standard deviations 10 points. Illustrate your answers with graphs. a. Calculate the percent of cars whose fuel efficiency is less than 48 mpg. b. Calculate the percent of scores that are between 28 and 68 mpg. c. Calculate the 16th percentile of the data.
QUESTION 5 The manufacturer of a new compact car claims that the car will average at...
QUESTION 5
The manufacturer of a new compact car claims that the car will
average at least 35 miles per gallon in general highway
driving.
For 100 test runs, the car averaged 35.5 miles per gallon with a
standard deviation of 4 miles per gallon.
Suppose that the manufacturer tests the following
hypotheses:
Consider the 1% significance level. What is the power of the
test if the actual average fuel efficiency is 36 miles per
gallon?
a.
88.877%
b.
99.086%...
SAMPLING DISTRIBUTION The manufacturer of a new compact car claims the miles per gallon (mpg) for gasoline consumption is normally distribution with u = 26.3 mpg and standard deviation 6 = 9.0 mpg. A consumer agency is looking to verify the manufacturer's claim. If a sample of 36 cars are tested, what is the probability that the mean mpg 7 is (a) less than 23 mpg? (b) more than 29 mpg? (b) between 23 and 29 mpg?
An automobile manufacturer claims that their car has a 56.7 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this car. After testing 14 cars they found a mean MPG of 56.6 with a standard deviation of 1.1. Is there sufficient evidence at the 0.1 level that the cars underperform the manufacturer's MPG rating? Assume the population distribution is approximately normal. Step 1 of 5: State the null and alternative hypotheses. Answer 2 Points...
A certain car model has a mean glass milage of 34 miles per
gallon (mpg) with a standard deviation 5mpg. A pizza delivery
company buys 43 of these cars. What is the probability that the
average milage of the fleet is greater than 33.5 mpg?
33) A certain car model has a mean gas mileage of 34 miles per gallon (mpg) with a standard deviation 5 mpg. A pizza delivery company buys 43 of these cars. What is the probability...
Problem 1 (18 points) Suppose the distribution of fuel efficiency (miles per gallon (mpg) in highway driving) for a sample of cars has a mound-shaped and symmetric distribution with mean x =38 and standard deviation s = 10 points. Illustrate your answers with graphs. a. Calculate the percent of cars whose fuel efficiency is less than 48 mpg. b. Calculate the percent of scores that are between 28 and 68 mpg. c. Calculate the 16th percentile of the data.
a certain car model has a mean gas mileage of 34 Miles per
gallon (mpg) with a population standard deviation for. A pizza
delivery company buys a sample of 54 of these cars. What is the
probability that the average mileage of the fleet is greater than
33.7 MPG?
Question 14 (3 points) A certain car model has a mean gas mileage of 34 miles per gallon (mpg) with a population standard deviation 4. A pizza delivery company buys a...
Problem 1 (18 points) Suppose the distribution of fuel efficiency (miles per gallon (mpg) in highway driving) for a sample of cars has a mound-shaped and symmetric distribution with mean X =38 and standard deviations 10 points. Illustrate your answers with graphs. a. Calculate the percent of cars whose fuel efficiency is less than 48 mpg. b. Calculate the percent of scores that are between 28 and 68 mpg. c. Calculate the 16th percentile of the data.
QUESTION 5
The manufacturer of a new compact car claims that the car will
average at least 35 miles per gallon in general highway
driving.
For 100 test runs, the car averaged 35.5 miles per gallon with a
standard deviation of 4 miles per gallon.
Suppose that the manufacturer tests the following
hypotheses:
Consider the 1% significance level. What is the power of the
test if the actual average fuel efficiency is 36 miles per
gallon?
a.
88.877%
b.
99.086%...
Most questions answered within 3 hours.
-
Explain the constitutional foundations for federalism.
asked 6 minutes ago -
Perform an internet search and answer the following questions:
Why should a business be concerned with...
asked 16 minutes ago -
Which board(s) has (have) worked to implement fair value
measurement for financial instruments? A. FASB, but...
asked 19 minutes ago -
Consider an element that reaches its first excited state by
absorption of 457.8 nm light.
Determine...
asked 30 minutes ago -
Sandhill Company sells product 2005WSC for $135 per unit. The
cost of one unit of 2005WSC...
asked 26 minutes ago -
Assume that we are planning to decrypt the cyphertext which was
encrypted with DES encryption. We...
asked 29 minutes ago -
Timmy Incorporated leases a piece of equipment to Apple
Corporation on January 1, 2017.
1. Lease...
asked 37 minutes ago -
The manager of specialty outdoor store has gathered the
following data concerning sales (in hundreds of...
asked 38 minutes ago -
A certain reaction is second order in
N2
and second order in
H2
. Use this...
asked 38 minutes ago -
John and his friends wanted to see how their friends compared to
the reading habits of...
asked 53 minutes ago -
When we have two sorted lists of numbers in non-descending
order, and we need to merge...
asked 55 minutes ago -
Find the variance for the given data. Round your answer to one
more decimal place than...
asked 1 hour ago