Chapter 11.2, Problem 1AYU

To determine

The blank space in the statement “A researcher wants to show the mean from second population is greater than the mean from first population in provided paired data. If the observations taken from sample 2 represent $Y_i$ and the observations taken from sample 1 represent $X_i$ and the difference is equal to $d_i{\text{= X}}_i-Y_i$, then the null hypothesis is $H_0:{\mu }_d\text{= 0}$ and the alternative hypothesis is $H_1:{\mu }_d$ ______ 0.”