Researchers at Purdue University and Wichita State University found that airlines are doing a better job of getting passengers to their destinations on time. AirTran Airways and Southwest Airlines were among the leaders in on-time arrivals with both having 88% of their flights arriving on time. But for the 12% of flights that were delayed, how many minutes were these flights late? Sample data showing the number of minutes that delayed flights were late are provided in the Excel Online file below. Data are shown for both airlines. Construct a spreadsheet to answer the following questions. Open spreadsheet a. Formulate the hypotheses that can be used to test for a difference between the population mean minutes late for delayed flights by these two airlines. µi = population mean minutes late for delayed AirTran flights µ2 = population mean minutes late for delayed Southwest flights 771 – I1 : 0H zrH – Il : 'H b. What is the sample mean number of minutes late for delayed flights for each of these two airlines? AirTran (to 2 decimals) Southwest (to 2 decimals) c. Using a .05 level of significance, what is the p-value and what is your conclusion? p-value is (to 4 decimals) We cannot 0 reject Ho.
Researchers at Purdue University and Wichita State University found that airlines are doing a better job of getting passengers to their destinations on time. AirTran Airways and Southwest Airlines were among the leaders in on-time arrivals with both having 88% of their flights arriving on time. But for the 12% of flights that were delayed, how many minutes were these flights late? Sample data showing the number of minutes that delayed flights were late are provided in the Excel Online file below. Data are shown for both airlines. Construct a spreadsheet to answer the following questions. Open spreadsheet a. Formulate the hypotheses that can be used to test for a difference between the population mean minutes late for delayed flights by these two airlines. µi = population mean minutes late for delayed AirTran flights µ2 = population mean minutes late for delayed Southwest flights 771 – I1 : 0H zrH – Il : 'H b. What is the sample mean number of minutes late for delayed flights for each of these two airlines? AirTran (to 2 decimals) Southwest (to 2 decimals) c. Using a .05 level of significance, what is the p-value and what is your conclusion? p-value is (to 4 decimals) We cannot 0 reject Ho.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
| AirTran | Southwest |
| 108 | 60 |
| 95 | 43 |
| 10 | 38 |
| 114 | 56 |
| 119 | 46 |
| 47 | 49 |
| 41 | 101 |
| 25 | 106 |
| 93 | 36 |
| 78 | 40 |
| 95 | 70 |
| 57 | 70 |
| 29 | 74 |
| 19 | 93 |
| 34 | 80 |
| 83 | 28 |
| 75 | 36 |
| 85 | 87 |
| 8 | 81 |
| 92 | 60 |
| 84 | |
| 95 | |
| 87 | |
| 83 | |
| 48 |
Transcribed Image Text:Researchers at Purdue University and Wichita State University found that airlines are doing a better job of getting passengers to their
destinations on time. AirTran Airways and Southwest Airlines were among the leaders in on-time arrivals with both having 88% of their flights
arriving on time. But for the 12% of flights that were delayed, how many minutes were these flights late? Sample data showing the number of
minutes that delayed flights were late are provided in the Excel Online file below. Data are shown for both airlines. Construct a spreadsheet to
answer the following questions.
X
Open spreadsheet
a. Formulate the hypotheses that can be used to test for a difference between the population mean minutes late for delayed flights by these
two airlines.
= In
population mean minutes late for delayed AirTran flights
l2 =
population mean minutes late for delayed Southwest flights
Но : и
H1 : 1
b. What is the sample mean number of minutes late for delayed flights for each of these two airlines?
AirTran
(to 2 decimals)
Southwest
(to 2 decimals)
c. Using a .05 level of significance, what is the p-value and what is your conclusion?
p-value is
(to 4 decimals)
We
cannot e
reject Ho.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman