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05 Jan 2021, 09:00
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The maximum total percentage reporting error at any of the three airports listed is 0.1 %.: Yes
JFK airport has the largest number of commercial flights of the three airports listed.: Yes
It is possible for there to have been no dwell times to departure greater than 121 minutes long at JFK in 2018: Yes
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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The table below shows the percentage of commercial airline passengers who dwelled at the top three major New York airports in 2018 by duration of time spent dwelling preflight.
(Sort ↕ the table by clicking on the headers)
For each of the following, select Yes if the statement listed is one that can be properly inferred from the information in the table. Otherwise, select No.
| Dwell time to Departure | JFK | LGA | EWR | Region | NYC Airports |
|---|---|---|---|---|---|
| < 30 minutes | 1.7% | 1.7% | 1.2% | 1.6% | 1.7% |
| 30-45 minutes | 2.8% | 4% | 2.3% | 3% | 3.2% |
| 45-60 minutes | 4.7% | 9.3% | 5.6% | 6.1% | 6.3% |
| 60-75 minutes | 7.3% | 14.6% | 10.8% | 10% | 9.7% |
| 75-90 minutes | 7.9% | 16.4% | 12.4% | 11.2% | 10.8% |
| 90-120 minutes | 22.3% | 28.2% | 29.1% | 25.4% | 24.3% |
| > 120 minutes | 53.2% | 25.9% | 38.6% | 42.7% | 44% |
| Average in minutes | 108.0 | 93.4 | 102.4 | 102.9 | 103 |
For each of the following, select Yes if the statement listed is one that can be properly inferred from the information in the table. Otherwise, select No.
| Yes | No | |
| The maximum total percentage reporting error at any of the three airports listed is 0.1 %. | ||
| JFK airport has the largest number of commercial flights of the three airports listed. | ||
| It is possible for there to have been no dwell times to departure greater than 121 minutes long at JFK in 2018 |
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Official Answer
The maximum total percentage reporting error at any of the three airports listed is 0.1 %.: Yes
JFK airport has the largest number of commercial flights of the three airports listed.: Yes
It is possible for there to have been no dwell times to departure greater than 121 minutes long at JFK in 2018: Yes
rocky620
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06 Jan 2021, 04:49
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For each of the following, select Yes if the statement listed is one that can be properly inferred from the information in the table. Otherwise, select No.
The maximum total percentage reporting error at any of the three airports listed is 0.1%. No. It cannot be inferred as we do not know the passenger's reasons for dwelling. Whether it is due to Reporting error / On Purpose dwelling / Airlines mandate.
JFK airport has the largest number of commercial flights of the three airports listed. No. It Cannot be inferred, as the data is in percentages of passengers dwelling for some period. No actual numbers are given. It is possible for all three to have 1000 passengers each or JFK to have 10000 passengers and the remaining two to have 1000 passengers. Also We do not know the size of Airliners (Planes), which will also change the number of the total flights.
It is possible for there to have been no dwell times to departure greater than 121 minutes long at JFK in 2018. Yes. It is possible. Lets assume that JFK has 1000 passengers and we maximize the dwell time in each time bracket. So, the dwell time will be as per the image below (could not insert table):
As you can see that after maximizing the dwell time the AVG is 108.4 mins (when we consider that 53.2% passengers spent 121 mins). But since the Actual Avg dwell time is only 108 mins. So it is possible for there to have been no dwell times to departure greater than 121 minutes long at JFK in 2018.
The maximum total percentage reporting error at any of the three airports listed is 0.1%. No. It cannot be inferred as we do not know the passenger's reasons for dwelling. Whether it is due to Reporting error / On Purpose dwelling / Airlines mandate.
JFK airport has the largest number of commercial flights of the three airports listed. No. It Cannot be inferred, as the data is in percentages of passengers dwelling for some period. No actual numbers are given. It is possible for all three to have 1000 passengers each or JFK to have 10000 passengers and the remaining two to have 1000 passengers. Also We do not know the size of Airliners (Planes), which will also change the number of the total flights.
It is possible for there to have been no dwell times to departure greater than 121 minutes long at JFK in 2018. Yes. It is possible. Lets assume that JFK has 1000 passengers and we maximize the dwell time in each time bracket. So, the dwell time will be as per the image below (could not insert table):
As you can see that after maximizing the dwell time the AVG is 108.4 mins (when we consider that 53.2% passengers spent 121 mins). But since the Actual Avg dwell time is only 108 mins. So it is possible for there to have been no dwell times to departure greater than 121 minutes long at JFK in 2018.
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File comment: Passengers Dwell TIME @ JFK
Dwell TIME JFK.png [ 14.8 KiB | Viewed 9986 times ]
28 Jan 2021, 06:08
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Explanation
The maximum total percentage reporting error at any of the three airports listed is 0.1 %.
Calculate the percentage of passenger's dwelled at the each airport given. (Use calculator)
13.jpg [ 125.8 KiB | Viewed 10117 times ]
JFK = 1.7 +2.8 + 4.7 + 7.3 + 7.9 + 22.3 + 53.2 = 99.9% = 0.1% reporting error.
LGA = 1.7 + 4.0 + 9.3 + 14.6 + 16.4 + 28.2 + 25.9 = 100 % = No error reported.
EWR = 1.2 + 2.3 + 5.6 + 10.8 + 12.4 + 29.1 + 38.6 = 100% = No error reported.
Region = 1.6 + 3 + 6.1 + 10 + 11.2 + 25.4 + 42.7 = 100% = No error reported.
NYC = 1.7 + 3.2 + 6.3 + 9.7 + 10.8 + 24.3 + 44 = 100% = No error reported.
It is clear that the maximum errors reported were at JFK and were 0.1%.
Answer: Yes
JFK airport has the largest number of commercial flights of the three airports listed.
Keep a sharp eye on the information provide above the table:
The table below shows the percentage of commercial airline passengers who dwelled at the top three major New York airports in 2018 by duration of time spent dwelling preflight.
The average dwell time at JFK is 108 minutes more than any other airports listed yet the passenger reporting the error is 0.1% highest among all the airports, One more clue is the last entry of passengers who dwelled more than 120 minutes at the airports is highest (52.3%) at JFK airport.
Answer: Yes
It is possible for there to have been no dwell times to departure greater than 121 minutes long at JFK in 2018
This statement is hard to crack, the only thing which can give us a concrete answer is to assume some number of passengers for JFK and then calculate the dwell minutes according to the data given in the table, Now assume we have 1000 (or even bigger numbers to get more concrete value) passengers total dwelled at JFK and calculate total dwell time according to the percentage given in the table, The maximum dwell time will be maximum 121 minutes, see the table as an example given by rocky620.
Answer: Yes
The maximum total percentage reporting error at any of the three airports listed is 0.1 %.
Calculate the percentage of passenger's dwelled at the each airport given. (Use calculator)
Attachment:
13.jpg [ 125.8 KiB | Viewed 10117 times ]
JFK = 1.7 +2.8 + 4.7 + 7.3 + 7.9 + 22.3 + 53.2 = 99.9% = 0.1% reporting error.
LGA = 1.7 + 4.0 + 9.3 + 14.6 + 16.4 + 28.2 + 25.9 = 100 % = No error reported.
EWR = 1.2 + 2.3 + 5.6 + 10.8 + 12.4 + 29.1 + 38.6 = 100% = No error reported.
Region = 1.6 + 3 + 6.1 + 10 + 11.2 + 25.4 + 42.7 = 100% = No error reported.
NYC = 1.7 + 3.2 + 6.3 + 9.7 + 10.8 + 24.3 + 44 = 100% = No error reported.
It is clear that the maximum errors reported were at JFK and were 0.1%.
Answer: Yes
JFK airport has the largest number of commercial flights of the three airports listed.
Keep a sharp eye on the information provide above the table:
The table below shows the percentage of commercial airline passengers who dwelled at the top three major New York airports in 2018 by duration of time spent dwelling preflight.
The average dwell time at JFK is 108 minutes more than any other airports listed yet the passenger reporting the error is 0.1% highest among all the airports, One more clue is the last entry of passengers who dwelled more than 120 minutes at the airports is highest (52.3%) at JFK airport.
Answer: Yes
It is possible for there to have been no dwell times to departure greater than 121 minutes long at JFK in 2018
This statement is hard to crack, the only thing which can give us a concrete answer is to assume some number of passengers for JFK and then calculate the dwell minutes according to the data given in the table, Now assume we have 1000 (or even bigger numbers to get more concrete value) passengers total dwelled at JFK and calculate total dwell time according to the percentage given in the table, The maximum dwell time will be maximum 121 minutes, see the table as an example given by rocky620.
Answer: Yes
