1. The problem states that $H_0: \mu_1 = \mu_2$, which is a hypothesis test where the null hypothesis claims the means of two populations are equal. 2. This is a common setup in statistics for comparing two population means, often tested using a two-sample t-test or z-test depending on the data. 3. To copy this into your Word file, you can simply type or paste the following: $H_0: \mu_1 = \mu_2$ 4. If you want to insert it as an equation in Word, use the Insert > Equation feature and type the LaTeX code without the dollar signs, or paste the equation directly if your Word supports LaTeX. 5. This notation means the null hypothesis assumes no difference between the two population means, which is the starting point for many hypothesis tests.