The Following Information Was Obtained from Matched Samples Regarding the Productivity

Short Answer

The following information was obtained from matched samples regarding the productivity of four individuals using two different methods of production.
$\begin{array}{lll}\text { Individual }&\text { Method } 1&\text { Method } 2\\1 & 6 & 8 \\2 & 9 & 5 \\3 & 7 & 6 \\4 & 7 & 5 \\5 & 8 & 6 \\6 & 9 & 5 \\7 & 6 & 3\end{array}$ Let d = Method 1 - Method 2. Is there a significant difference between the productivity of the two methods?
Let α = 0.05.