Wondering if someone could tell me what type of test you would perform to answer

Question

Wondering if someone could tell me what type of test you would perform to answer these questions? Am I correct? Can you explain why you would use that test?

You need to write a managerial report answering the following questions: 1) We would like to know whether the proportion of the delayed departures for American Airlines differ at these two airports or not? Z-test 2) And whether there is a significant difference in the proportion of the delayed departures for American Airlines at these two airport interpret z test 3) We would like to know for the flights that were delayed, how many minutes were these flights bairs Independent t-test; mean of late flights 4) And whether there is a significant difference in the mean number of minutes late for the delayed flights between these two airports. Independent t-test

Explanation / Answer

1)z test for two sample proportions should be used here.

H0:p1=p2 against H1:p1> p2

2) z test for two sample proportions should be used here.

H0:p1=p2 against H1:p1 not equal to p2

3)Independent t test for two population mean:

H0:mu1=mu2

H1:mu1>mu2

4) Independent t test for two population mean:

H0:mu1=mu2

H1:mu1 not equal to mu2

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