Using the independent t test?

Hi guys, I am a first year statistics students and I'm a bit shaky on the subject. Please help me with the question below. Thanks!


A manager wants to know if providing free samples of their product to local residents would help increase the number of sales the company received from the local shop owners. She randomly assigned 120 local districts to either receive or not receive free samples. She then kept track of the sales in each district for 3 months. Sales for the no free sample group: 22, 20, 20, 22, 23, 24, 23, 23, 24, 22. Sales for the free sample group: 23, 20, 22, 24, 23, 25, 23, 23, 25, 25, Using the independent t test, determine if there is a significant difference? Is it practical? (Show and label each step)