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Statistics Assignment | Homework Help Websites

Author:
February 12th, 2019

1) Create a contingency table (this is very easy in Statgraphics: Describe > Categorical Data > Crosstabulation) and copy this table into your report. Use Carrier and Origin as your rows and columns, respectively.

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2) What are the null hypothesisprofessional writing services near meand the alternative hypothesis for a test of independence based on this table? For our purposes, we’ll pretend this data set is a random sample of all recent flights out of Oregon.

3) Calculate this test statistic, and report your p-value. You may calculate this “by hand”, but it will be much faster and easier in Statgraphics. In Statgraphics, Describe > Categorical Data > Crosstabulation > make sure Tests of Independence is checked. One of the output boxes presents the result for this test. Copy that test result into your report (excluding StatAdvisor’s interpretation) into your report.

4) What does this p-value tell you about flight carrier and origin airport, in everyday language.

5) Give an example of a different test of independence we could perform using this data.

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