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Standard Deviation Assignment | Professional Writing Services

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January 23rd, 2020

What is the 98% confidence interval for the difference in flight delays from United to Southwest?

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b. What is the test statistic for testing to see if there is a significant difference in the number of delays?

 

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Airline United Southwest Sample Size 40 42 Average Number of Delays per 141 361Month Population Standard Deviation 270 402

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