My husband Ryan (who also teaches at the College) wants to know whether the use of name brand tools helps his electical engineering students perform their electrical tasks more efficiently. He randomly assigns his students into one of two groups. Half of the students are given top of line name brand tools, while the other half are given tools from the dollar store. He recorded the number of hours it took each student to perform a given lab

Means:

Brand name tools: 81/14= 5.79. Dollar store tools: 131/14=9.36