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.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
