Good morning, tutors. I really need help understanding how to find the right t-test and finding the alpha level. I really don't understand. I know these are two questions to answer and it will take longer, but I really need your assistance.

Reference: My homework for Statistics

Then, construct a hypothesis and address the following in a document. - Describe what you are comparing. - State your hypothesis in a sentence. - Indicate the appropriate t-test that you will use to evaluate your hypothesis. - State the alpha ((1) level. A B C D E F G H Compare two different companies or compare one company vs ACME error before and Brand X error before and Hypothesized mean after maintenance after maintenance ACME ACME Brand X Brand X Altimeter Altimeter Altimeter Altimeter error before |error after error before error after Altimeter Altimeter Altimeter Altimeter Altimeter Altimeter |adjustment- adjustment- adjustment- adjustment- 2 Brand A Brand B Brand C Brand D Brand E Brand F calibration calibration calibration calibration 3 42 38 16 47 42 39 41 9 14 O O 38 32 35 6 4 7 11 8 5 5 0 29 4 18 12 6 32 4 33 4 6 3 4 26 31 22 38 25 4 33 9 30 36 28 10 12 42 25 9 26 9 29 20 21 22 3 32 1 32 9 g 45 32 25 25 42 38 4 5 19 9 10 32 5 29 10 10 9 44 10 7 4 11 40 45 32 19 7 17 4 11 29 12 5 14 34 31 9 13 23 3 31 13 37 27 23 30 11 34 39 13 20 14 27 38 36 26 15 48 42 1 31 15 25 6 15 14 33 45 29 10 2 16 36 43 43 34 19 14 14 11 11 17 10 22 8 49 18 12 26 9 11 18 1 38 10 4 20 49 23 2 29 5 19 9 20 26 36 32 25 42 5 32 3 20 43 43 46 47 17 3 43 19 2 21 46 3 23 36 44 5 1 26 6 22 19 0 17 10 12 47 10 12 32 5In Part I, you will evaluate an aircraft altimeter data sample from different companies to determine if there are any differences in error. You have the following three options for running the appropriate ttest. - Option 1 - compare one brand against a hypothesized mean to determine if the brand is statistically different than the assumed norm. In this case, you would have to cite where the hypothesized population mean came from. - Option 2 - compare one brand against another to see if there are signicant differences between them. - Option 3 - compare either altimeter error of ACME or Brand X before adjustment and calibration and after adjustment and calibration to see if there are any differences in the means (performance). Based on the type of dependent variable data (ratio) and the type of question in the scenario, you will use a t-test. As you know, there are three different types of t-tests you can use: - One sample t-test (test for one population mean using Excel) - Two sample t-test [hypothesis test for two population means using Excel)I - Paired t-test (compare before and after values for one type using Excel)