I am just starting a new class and am already lost and feel dumb. The instructor is starting out in chapter 10 and it has been years since my last statistics class, please help! I don't even know where to begin...

Math 104 Homework 1 Problem 1 To compare the braking distance for two types of tires, a safety engineer conducts 50 braking tests for each of the two types of tires. The results of the tests are shown in the table below. Assume o, and o, are known. Type C Type D 1 =50 7, =50 X =55 feet X, =51 feet 0, =5.3 feet 0, =4.9 feet At o =10%, can the engineer support the claim that the mean braking distance for Type C is greater than the mean breaking distance for type D