statistical analysis — 2

I am working at X company where we have 4 different plants Pump house 1 (PH1), Pump house 2 (PH2), Sea island (SI) , and Terminal north (TN). Each plant has an OME team where they have some inspection work sheets(IWS) in three different types mechanical , electrical, and civil to close every year. The below is 2019 IWS data (From our inspection unit at ERT)
inspection work sheets type PH1 PH2 SI TN Total
Mechanical 28 17 14 11 70
Electrical 12 7 5 3 27
Civil 8 4 4 5 21
Total 48 28 23 19 118

perform the following tests:
a. Goodness of Fit Test
b. Test of Independence (contingency table)
c. ANOVA

2- Describe how each of these tests has helped you improve the Decision Making Process quality in your work environment.
3- Which one of these tests was more useful to you in this process?