A small dealership leased 21 Suburu Outbacks on 2-year leases. When the cars were returned at the end of the lease, the mileage was recorded (see below). 40,00024,94014,32517,32844,72944,52220,25433,30524,20441,76558,32835,82525,71528,98525,01143,36323,95643,58053,68531,84736,789 Click here for the Excel Data File (a) Is the dealer's mean significantly greater than the national average of 30,537 miles for 2-year leases? Using the 10 percent level of significance, choose the appropriate hypothesis. H0: μ ≤ 30,537 miles vs. H1: μ > 30,537 miles, reject H0 if tcalc > 1.3250H0: μ ≥ 30,537 miles vs. H1: μ > 30,537 miles, reject H0 if tcalc > 1.3250H0: μ ≤ 30,537 miles vs. H1: μ < 30,537 miles, reject H0 if tcalc > 1.3250H1: μ ≤ 30,537 miles vs. H0: μ > 30,537 miles, reject H0 if tcalc > 1.3250 cadb (b) Calculate the test statistic. (Round your answer to 2 decimal places.) Test statistic (c) The dealer's cars show a significantly greater mean number of miles than the national average at the 10 percent level. YesNo

Name: A small dealership leased 21 Suburu Outbacks on 2-year leases. When th
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: A small dealership leased 21 Suburu Outbacks on 2-year leases. When the cars were returned at the end of the lease, the mileage was recorded (see below). 40,00024,94014,32517,32844,72944,52220,25433,30524,20441,76558,32835,82525,71528,98525,01

Answered: Image /qna-images/answer/0483cf3f-afa6-4aa0-a776-038644ec97c9.jpg

Answered: a) Is the dealer's mean significantly…

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter2: Working With Real Numbers

Section2.3: Rules For Addition

Problem 7P

See similar textbooks

Related questions

Topic Video

Question

A small dealership leased 21 Suburu Outbacks on 2-year leases. When the cars were returned at the end of the lease, the mileage was recorded (see below).


40,000	24,940	14,325	17,328	44,729	44,522	20,254
33,305	24,204	41,765	58,328	35,825	25,715	28,985
25,011	43,363	23,956	43,580	53,685	31,847	36,789

Click here for the Excel Data File

(a) Is the dealer's mean significantly greater than the national average of 30,537 miles for 2-year leases? Using the 10 percent level of significance, choose the appropriate hypothesis.

H₀: μ ≤ 30,537 miles vs. H₁: μ > 30,537 miles, reject H₀ if t_calc > 1.3250
H₀: μ ≥ 30,537 miles vs. H₁: μ > 30,537 miles, reject H₀ if t_calc > 1.3250
H₀: μ ≤ 30,537 miles vs. H₁: μ < 30,537 miles, reject H₀ if t_calc > 1.3250
H₁: μ ≤ 30,537 miles vs. H₀: μ > 30,537 miles, reject H₀ if t_calc > 1.3250

(b) Calculate the test statistic. (Round your answer to 2 decimal places.)

Test statistic

(c) The dealer's cars show a significantly greater mean number of miles than the national average at the 10 percent level.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Means$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions