In this first step, divide the data set to make the training and testing set. . Goal: Divide the data into two random samples. The first sample is called the training set and will contain 80% of the data values. The second sample is called the testing set and will contain 20% of the data values. . How: Collect a random sample. o Step 1: Choose a random sampling technique. o Step 2: Apply the random sampling technique to the data set to randomly select 20% of the sales managers and their associated data. Copy and paste those into the "Testing set" part of the table below. Though this is the "second sample", we are collecting it first for efficiency - it is faster to collect a 20% sample instead of collecting an 80% sample. o Step 3: Then take the remaining 80% of the sales managers and their associated data, and copy and paste those into the "Training set" part of the table below. o Step 4: At the top of the table, briefly explain how you collected your sample in the row provided in the table