Question
In: Statistics and Probability
An online travel agency would like to test the hypothesis that the proportion of a particular...
An online travel agency would like to test the hypothesis that the proportion of a particular airline's flights that arrive on-time is less than 0.90. A random sample of 140 such flights found that 119 arrived on-time. The agency would like to set α=0.05. This is A) Upper tail test, B) lower tail or C) two-tail test
Solutions
Expert Solution
|
Option B This corresponds to a left-tailed test(Lower tailed test), for which a z-test for one population proportion needs to be used. |
orchestra answered 1 year agoRelated Solutions
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