Can you please solve by hand? Thank you

Customers are randomly selected & give a sample from each of the four products ( which are randomly selected). They rated products from a scale from 0-10 is there evidence to say that ratings differ based on the product ? Here = 0.05 (alpha= a, 05) Product A | Product B 1 Product ( ) Productb 7.8 40 5 9.0 3.4 8:2 7.2 6.2 6. 7 6. 3 6.4 7.5 5.6 7. 2 5.0 6. 5 4. 2 6. 8 5.4 7. 1 4. 9 6, 2