Answer to Question #240 in Statistics and Probability for sarah
The probability that a flight is early: 65/(65+273+218+44)=65/600= 0.108.
The probability that a flight is On time:273/600 = 0.455.
The probability that a flight is Late: 218/600 = 0.363.
The probability that a flight is Cancelled: 44/600 = 0.073.
The probability that a flight is either early or on time: (65+273)/600 = 0.563.
These outcomes are mutually exclusive.
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Think about a population proportion that you may be interested in and propose a hypothesis test problem for this parameter
For example, you may believe that the population proportion of adults in the US who own SUVs is 0.25. Your data could be that you surveyed people leaving work at the end of the day and found that 13 out of 50 owned an SUV. Test this hypothesis at the .05 (or another) significance level. Assume a random sample.