I have to solve for three hypothesis. I don't need you to do that, but I need to know which type of test is better with this data (parametric or non-parametric), of those tests which I should use, what assumptions I will make to use that test, and what type of data this is considered nominal, ordinal, or interval ratio.

Hypothesis 1:There are statistically significant differences in other revenues and profitability of Delta Versus Southwest Airlines from 2016 to 2020.

Hypothesis 2:Other revenues show a positive relationship with gross profits for Delta Airlines.

Hypothesis 3:Other revenues show a positive relationship with gross profits for Southwest Airlines.

Delta Airlines

Year Gross Profits in Millions Other Revenue in Millions

2016 6353 3484

2017 5500 4052

2018 5151 4683

2019 6198 4730

2020 -15495 4212

Southwest Airlines

Year Gross Profits in Millions Other Revenue in Millions

2016 3450 1221

2017 3265 1383

2018 3164 1510

2019 2957 1652

2020 -4256 1383