An SRS of 100 flights of a large airline (call this airline 1)
showed that 64 were on time. An SRS of 100 flights of another large
airline (call this airline 2) showed that 80 were on time. Let p1
and p2 be the proportion of all flights that are on time for these
two airlines. Reference: Ref 8-10 You wish to determine whether
there is evidence of a difference in the on-time rate for the two
airlines? To determine this, you test the hypotheses H0: p1 = p2,
Ha: p1 ≠p2. Using a 5% significance level, the conclusion to be
drawn is that there is: not statistically significant evidence that
the on-time rate is different for the two airlines. statistically
significant evidence that the on-time rate is the same for the two
airlines. not statistically significant evidence that the on-time
rate is the same for the two airlines. statistically significant
evidence that the on-time rate is different for the two
airlines.
