According to the Bureau of Transportation Statistics, on-time performance by airlines is described as follows:
|Action||% of time|
|National Aviation System Delay||8|
|Aircraft arriving late||10|
|Other (weather and other conditions)||13|
When a study was conducted it was found that of the 233 randomly
selected flights, 163 were on time, 21 were a National Aviation
System Delay, 23 arriving late , 26 were due to weather. Perform a
test to see if there is sufficient evidence at αα = 0.10 to see if
these differ from the governments statistics.
The correct hypotheses are:
The test value is (round to 3 decimal places)
The p-value is (round to 3 decimal places)
The correct decision is to
The final conclusion is
The statistical software output for this problem is:
From above output:
Hypotheses: H0:H0: The sample is a good fit to the Bureau of Transportation Statistics. HA:HA: The sample is not a good fit to the Bureau of Transportation Statistics.(claim) Option A is correct.
Test value = 0.941
p - Value = 0.816
Do not reject Ho
Conclusion: Option D is correct.
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