The mean arrival rate of flights at O\'Hare Airport in marginal weather is 195 f
ID: 3059552 • Letter: T
Question
The mean arrival rate of flights at O'Hare Airport in marginal weather is 195 flights per hour with a historical standard deviation of 15 flights. To increase arrivals, a new air traffic control procedure is implemented. In the next 30 days of marginal weather, the mean arrival rate is 197 flights per hour.
Set up a right-tailed decision rule at = .025 to decide whether there has been a significant increase in the mean number of arrivals per hour. Choose the appropriate hypothesis.
Calculate the test statistic. (Round your answer to 2 decimal places.)
No, z.01 = 2.33 and .73 < 2.33, so we would still have concluded that there is no evidence to indicate a significant increase.
Yes, z.01 = 2.33 and .73 < 2.33, so we would still have concluded that there has been a significant increase in the average number of flight departures.
The mean arrival rate of flights at O'Hare Airport in marginal weather is 195 flights per hour with a historical standard deviation of 15 flights. To increase arrivals, a new air traffic control procedure is implemented. In the next 30 days of marginal weather, the mean arrival rate is 197 flights per hour.
Explanation / Answer
The mean arrival rate of flights at O'Hare Airport in marginal weather is 195 flights per hour with a historical standard deviation of 15 flights. To increase arrivals, a new air traffic control procedure is implemented. In the next 30 days of marginal weather, the mean arrival rate is 197 flights per hour.
Set up a right-tailed decision rule at = .025 to decide whether there has been a significant increase in the mean number of arrivals per hour. Choose the appropriate hypothesis.
Calculate the test statistic. (Round your answer to 2 decimal places.)
No, z.01 = 2.33 and .73 < 2.33, so we would still have concluded that there is no evidence to indicate a significant increase.
Yes, z.01 = 2.33 and .73 < 2.33, so we would still have concluded that there has been a significant increase in the average number of flight departures.
The mean arrival rate of flights at O'Hare Airport in marginal weather is 195 flights per hour with a historical standard deviation of 15 flights. To increase arrivals, a new air traffic control procedure is implemented. In the next 30 days of marginal weather, the mean arrival rate is 197 flights per hour.
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