Homework Help is Here – Start Your Trial Now!
Math
Statistics
Q4. A taxi company is trying to decide: whether to purchase brand A or brand B tires for its fleet of taxis. To estimate the difference in the two brands, an experiment is conducted using 12 of each brand. The tires are run until they wear out. The results are Brand A: žA = 36300 km ; sa = 5000 km Brand B: īg = 38100 km ; Sg = 6100 km a) Compute a 95% confidence interval for µa – HB assuming the populations to be approximately normally distributed and variances are inequal. b) Find a 99% confidence interval for µa – HB if a tire from each company is assigned at random to the rear wheels of 8 taxis and the following distance, in kilometers, recorded: Таxi Brand A Brand B 1 34400 36700 2 45500 46800 3 36700 37700 4 32000 31100 48400 47800 6 32800 36400 7 38100 38900 8 30100 31500 Assume that the differences of the distances are approximately normally distributed.

Q4. A taxi company is trying to decide: whether to purchase brand A or brand B tires for its fleet of taxis. To estimate the difference in the two brands, an experiment is conducted using 12 of each brand. The tires are run until they wear out. The results are Brand A: žA = 36300 km ; sa = 5000 km Brand B: īg = 38100 km ; Sg = 6100 km a) Compute a 95% confidence interval for µa – HB assuming the populations to be approximately normally distributed and variances are inequal. b) Find a 99% confidence interval for µa – HB if a tire from each company is assigned at random to the rear wheels of 8 taxis and the following distance, in kilometers, recorded: Таxi Brand A Brand B 1 34400 36700 2 45500 46800 3 36700 37700 4 32000 31100 48400 47800 6 32800 36400 7 38100 38900 8 30100 31500 Assume that the differences of the distances are approximately normally distributed.

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
See similar textbooks
icon
Related questions
Topic Video
Question
Q4. A taxi company is trying to decide: whether to purchase brand A or brand B tires for its fleet of taxis. To estimate the difference in the two brands, an experiment is conducted using 12 of each brand. The tires are run until they wear out. The results are Brand A: 74 = 36300 km ; SĄ = 5000 km Brand B: īg = 38100 km ; Sg = 6100 km a) Compute a 95% confidence interval for µa – H assuming the populations to be approximately normally distributed and variances are inequal. b) Find a 99% confidence interval for Ha – Hg if a tire from each company is assigned at random to the rear wheels of 8 taxis and the following distance, in kilometers, recorded: Тахi Brand A Brand B 1 34400 36700 2 45500 46800 3 36700 37700 4 32000 31100 48400 47800 6 32800 36400 7 38100 38900 30100 31500 Assume that the differences of the distances are approximately normally distributed.
Transcribed Image Text:Q4. A taxi company is trying to decide: whether to purchase brand A or brand B tires for its fleet of taxis. To estimate the difference in the two brands, an experiment is conducted using 12 of each brand. The tires are run until they wear out. The results are Brand A: 74 = 36300 km ; SĄ = 5000 km Brand B: īg = 38100 km ; Sg = 6100 km a) Compute a 95% confidence interval for µa – H assuming the populations to be approximately normally distributed and variances are inequal. b) Find a 99% confidence interval for Ha – Hg if a tire from each company is assigned at random to the rear wheels of 8 taxis and the following distance, in kilometers, recorded: Тахi Brand A Brand B 1 34400 36700 2 45500 46800 3 36700 37700 4 32000 31100 48400 47800 6 32800 36400 7 38100 38900 30100 31500 Assume that the differences of the distances are approximately normally distributed.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS