2. Over at NAIA, you are observing the average length of flight delays (excluding flights that leave on time). Your notes for ten randomly chosen days are here: Day Ave. delay (hrs:min) Day 6. Ave. delay (hrs:min) 2:00 0:43 1:48 0:13 0:19 0:17 0:34 3:12 0:25 9. 2:18 10 If the airport claims that the delays will be no more than a minute on average, check his claim by doing the following: (a) Write the null hypothesis. (b) Write the alternative hypothesis. (c) Formulate and calculate the test-statistic. Is it a one-tail or two-tailed test? Did the airport told you the truth at 95% confidence level? (d) Determine the confidence interval.
2. Over at NAIA, you are observing the average length of flight delays (excluding flights that leave on time). Your notes for ten randomly chosen days are here: Day Ave. delay (hrs:min) Day 6. Ave. delay (hrs:min) 2:00 0:43 1:48 0:13 0:19 0:17 0:34 3:12 0:25 9. 2:18 10 If the airport claims that the delays will be no more than a minute on average, check his claim by doing the following: (a) Write the null hypothesis. (b) Write the alternative hypothesis. (c) Formulate and calculate the test-statistic. Is it a one-tail or two-tailed test? Did the airport told you the truth at 95% confidence level? (d) Determine the confidence interval.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:2. Over at NAIA, you are observing the average length of flight delays (excluding
flights that leave on time). Your notes for ten randomly chosen days are here:
Day
Ave. delay (hrs:min)
Day
6.
Ave. delay (hrs:min)
2:00
0:43
1:48
0:13
0:19
0:17
0:34
3:12
0:25
9.
2:18
10
If the airport claims that the delays will be no more than a minute on average, check his
claim by doing the following: (a) Write the null hypothesis. (b) Write the alternative
hypothesis. (c) Formulate and calculate the test-statistic. Is it a one-tail or two-tailed test?
Did the airport told you the truth at 95% confidence level? (d) Determine the confidence
interval.
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