Question

Mr. Krabbs wants to make Bikini Bottoms 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 mayonnaise 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.
Which people are in the control group?
What is the independent variable?
What is the dependent variable?
What is an appropriate hypothesis?
What should Mr. Krabs’ conclusion be?

Answer 1

The control group in Mr. Krabs' experiment is Group B, who received the placebo sauce. The independent variable is the type of sauce, and the dependent variable is the production of body gas. Mr. Krabs' conclusion should suggest that the new sauce may reduce gas problems, as indicated by the experimental results.

Step-by-step explanation:

In Mr. Krabs' experiment, the control group consists of the 50 customers who ate crabby patties with a sauce that is just a mixture of mayonnaise and food coloring (Group B). The independent variable is the type of sauce given to the customers (new sauce vs. placebo sauce), while the dependent variable is the production of body gas after consuming the crabby patties with the respective sauces.

An appropriate hypothesis for this experiment might be that consuming crabby patties with the new sauce will reduce the production of body gas in customers with a history of gas problems. Considering the results, where 30 customers in group A (experimental group) reported having fewer gas problems compared to 8 in group B (control group), Mr. Krabs' conclusion should be that there is a significant difference in gas production between the two groups, suggesting that the new sauce may indeed be effective in reducing gas problems.