Mathematics, 08.03.2021 19:30 kamila20394

A random sample of Hummers for sale in Los Angeles and New York were taken from listings at cars. com. We want to know if there is a difference in mean listing prices between Hummers for sale in Los Angeles (group 1) and Hummers for sale in New York (group 2). Create a 95% confidence interval for the true difference of mean listing prices between the two cities. Open the data file Used Hummers LA and NY. Use this information to answer question 18 and 19. 18. Of the four types of confidence intervals listed below, which one is appropriate for this situation?
Confidence interval for Image for A random sample of Hummers for sale in Los Angeles and New York were taken from listings at cars. com. We want when sigma is known.
Confidence interval for Image for A random sample of Hummers for sale in Los Angeles and New York were taken from listings at cars. com. We want when sigma is unknown.
Confidence interval for the difference of means, using independent samples.
Confidence interval for the mean of differences, using dependent samples.
19. Which of the following is the 95% confidence interval for the true difference of mean listing prices between Hummers from LA and NY?
(-210, 6221)
(-770, 5764)
(-423, 5417)
(-402, 5396)

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 16:30

The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257

Answers: 2

Answer

Mathematics, 21.06.2019 19:30

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

Answers: 2

Answer

Mathematics, 21.06.2019 21:20

Which of the following can be used to explain a statement in a geometric proof?

Answers: 2

Answer

Mathematics, 21.06.2019 22:00

Asystem of linear equations with more equations than unknowns is sometimes called an overdetermined system. can such a system be consistent? illustrate your answer with a specific system of three equations in two unknowns. choose the correct answer below. a. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 6 b. no, overdetermined systems cannot be consistent because there are fewer free variables than equations. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 12 c. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 8 d. no, overdetermined systems cannot be consistent because there are no free variables. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 24

Answers: 3

Answer

You know the right answer?

A random sample of Hummers for sale in Los Angeles and New York were taken from listings at cars. co...

Questions