Question

independent practice
introduction to statistics review
a study finds that airline as on - time flight performance is 88%, while airline bs on - time flight performance is 52%. are the results of this study statistically significant?
a. no, because the results are unlikely to occur by chance.
b. yes, because the results are likely to occur by chance.
c. yes, because the results are unlikely to occur by chance.
d. no, because the results are likely to occur by chance.
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Explanation:

Statistical significance means results are unlikely to occur by chance. Here, there is a large difference (88% - 52% = 36%) in on - time flight performance between the two airlines. Such a difference is unlikely to be due to random chance.

Answer:

C. Yes, because the results are unlikely to occur by chance.