If I can get help with this question, can not seem to figure out how to answer it. Thank you!

Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these gears, measured in foot-pounds, is an important characteristic. A random sample of 10 gears from supplier 1 results in X1 = 282 and $1 = 12, while another random sample of 15 gears from supplier 2 results in X2 = 324 and $2 = 20. Is there evidence to support the claim that supplier 2 provides gears with higher mean impact strength? Use