Can someone help me with this problem? [Scientific method]?

Question

Mr.Krabbs wants to make Bikini Bottom a nicer place to live. He has created a new sauce that he thinks will reduce the production of body gas associated with eating crabby patties from the Krusty Krab. He recruits 100 customers with a history of gas problems. He has 50 of them (Group A) eat crabby patties with the new sauce. The other 50 (Group B) eat crabby patties with sauce that looks just like new sauce but is really just mixture of mayonaise and food coloring. Both groups were told that they were getting the sauce that would reduce gas production. Two hours after eating the crabby patties, 30 customers in group A reported having fewer gas problems and 8 customers in group B reported having fewer gas problems.

I cannot figure out the independent variable. I said that the dependent is the new sauce..but I'm not sure if I'm right. I think I might have mixed up the independent and dependent variables.

Answer 1

the independent variable is the sauce, the dependent variable is the gas problems