To Compare the Cost of Three Shipping Methods, a Firm

Multiple Choice

To compare the cost of three shipping methods, a firm ships material to each of four different destinations over a six-month period. The average cost per shipment is shown below. $\begin{array}{|c|c|c|c|c|}\hline\text { Shipper } & \text { Toledo } & \text { Oshawa } & \text { Janesville } & \text { Dallas } \\\hline \text { SpeedyShip } &355 & 435 & 422 & 518 \\\hline \text { GetItThere } &342 & 441 & 402 & 488 \\\hline \text { WeR Tops } &361 & 430 & 435 & 528 \\\hline\end{array}$ Which test would be appropriate?

A) Independent samples t-test
B) Two-factor ANOVA with replication
C) Dependent (paired-samples) t-test
D) Two-factor ANOVA without replication