A Corporate Analyst Is Testing Whether Mean Inventory Turnover Has

Multiple Choice

A corporate analyst is testing whether mean inventory turnover has increased. Inventory turnover in six randomly chosen product distribution centers (PDCs) is shown. $\begin{array} { |l | c | c | } \hline & { \text { This Year } } & \text { Last Year } \\\hline \text { PDC 1 } & 5.1 & 4.1 \\\hline \text { PDC 2 } & 3.9 & 2.9 \\\hline \text { PDC 3 } & 4.8 & 2.8 \\\hline \text { PDC 4 } & 3.4 & 3.4 \\\hline \text { PDC 5 } & 4.6 & 2.6 \\\hline \text { PDC 6 } & 7.7 & 4.7 \\\hline\end{array}$ The right-tailed critical value at ? = 0.005 is:

A) 1.645
B) 1.479
C) 4.032
D) 2.015