Use a T-test for the following instructions:

1. With the dataset open in Microsoft Excel, select the "Data Analysis" button from the Data toolbar and Analysis ribbon. A dialog will appear showing a list of available statistical tests. Choose "T-Test: Two-Sample" and base the selection on your assumptions testing (equal or unequal variances).
2. Select the ranges for each sample you are comparing for statistically significant differences.
3. Enter "0" for the hypothesized mean (H₀: 1 - 2 = 0, (that is, there is no statistically significant difference between the means).
4. Select an output range, perhaps on a separate worksheet, and click "OK."