On-Time Performance by Airlines According to the Bureau of Transportation statistics, on-time performance by the airlines is described as follows: Action % of time On time 70.8 National Aviation System delay 8.2 Aircraft arriving late 9.0 Other (because of weather and other conditions) 12.0 Records of 200 flights for a major airline company showed that 147 planes were on time; 25 were delayed because of weather, 15 because of a National Aviation System delay, and the rest because of arriving late. At a=0.025, do these results differ from the government's statistics? Find the critical value. Round the answer to at least three decimal places Compute the test value. Round the intermediate and final answer to at least three decimal places. X2= Make the decision. ▼(Choose one) the null hypothesis. Summarize the results.
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
On-Time Performance by Airlines According to the Bureau of Transportation statistics, on-time performance by the airlines is described as follows:
| Action |
%
|
|---|---|
| On time |
70.8
|
| National Aviation System delay |
8.2
|
| Aircraft arriving late |
9.0
|
| Other (because of weather and other conditions) |
12.0
|
Records of 200 flights for a major airline company showed that 147 planes were on time; 25 were delayed because of weather, 15 because of a National Aviation System delay, and the rest because of arriving late. At a=0.025, do these results differ from the government's statistics?
Find the critical value. Round the answer to at least three decimal places
Compute the test value. Round the intermediate and final answer to at least three decimal places.
X2=
Make the decision.
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