In this tutorial we will learn how to perform T Test in Excel. When we want to compare two means we use T Test. T Test is the test of null hypothesis, which states the mean of two population are equal.

**H _{0}: μ_{1} – μ_{2} = 0**

**H**

_{1}: μ_{1}– μ_{2}≠ 0Alternate hypothesis H1 states that the two population means are not equal.

**Data:**

We will be using the scores of students across two different subjects to depict example on T test in Excel, Which is shown below.

**Step 1:** On the top right corner of the data tab click data analysis.

Note: if you can’t able to find the Data Analysis button? Click here to load the **Analysis ToolPak** add-in.

**Step 2:** Select T – Test Two Sample Assuming Unequal Variances and click ok

**Step 3:** Click in the Input Range boxes and select the Variable 1 Range **A2:A10** and Variable 2 Range **B2:B10**, Click in the Hypothesized Mean Difference box and enter 0 (H0: μ1 – μ2 = 0) and select the output range as **D2**, as shown below and click ok.

So the result will be

If **t Stat **< **-t Critical two-tail** or **t Stat** > **t Critical two-tail**, we reject the null hypothesis. In our case 0.201 > -2.13 and 0.201 < 2.13, so we cannot reject null hypothesis. So both the means do not differ significantly.