The airline industry defines no-shows as passengers who have purchased a ticket

Question

The airline industry defines no-shows as passengers who have purchased a ticket but fail to arrive at the gate on time for departure. An airline operates many flights from City A to City B and experienced the accompanying no-show probability distribution last year The accompanying data shows the number of no-shows that occurred on a random sample of 120 flights between these two cities this year. The airline would like to know if the probability distribution of no-shows has changed between last year and this year on flights between these two cities using alpha= 0.05. How many degrees of freedom does the critical value have? Click the icon to view the probability distribution and sample data. A. 5 B. 3 C. 6 D. 4

Explanation / Answer

The degree of freedom for critical value here , n=6 and alpha is 0.05 . The degrees of freedom is n-1 then 6-1 =5

Hence the answer is 5

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