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 (hours: min) Day2:001:480:190:252:180:430:130:170:343:12 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 (excludingflights that leave on time). Your notes for ten randomly chosen days are here:Ave. delay (hrs:min)0:43DayAve. delay (hrs:min)Day2:001:4870:130:170:190:250:342:18103:12If the airport claims that the delays will be no more than a minute on average, check hisclaim by doing the following: (a) Write the null hypothesis. (b) Write the alternativehypothesis. (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 confidenceinterval.

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Description: 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 (hours: min) Day2:001:480:190:252:180:430:130:170:343:12

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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 (hours: min) Day

2:00
1:48
0:19
0:25
2:18
0:43
0:13
0:17
0:34
3:12

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:
Ave. delay (hrs:min)
0:43
Day
Ave. delay (hrs:min)
Day
2:00
1:48
7
0:13
0:17
0:19
0:25
0:34
2:18
10
3:12
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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