In an Agricultural Experiment, the Effects of Two Fertilizers on the Production

Multiple Choice

In an agricultural experiment, the effects of two fertilizers on the production of oranges were measured. Fourteen randomly selected plots of land were treated with fertilizer $A$ , and 10 randomly selected plots were treated with fertilizer $B$ . The The number of pounds of harvested fruit was measured from each plot. Following are the results.

$\begin{array}{}{\text { Fertilizer A }} \\\hline 479 & 385 & 400 & 417 & 405 & 403 & 386 \\\hline 450 & 406 & 434 & 437 & 409 & 429 & 352 \\\hline\end{array}$


$\begin{array}{ccccc}{\text { Fertilizer B }} \\\hline 404 & 403 & 387 & 427 & 429 \\\hline 404 & 464 & 418 & 411 & 340\end{array}$
Assume that the populations are approximately normal. Can you conclude that there is a difference in the mean yields for the two types of fertilizer? Use the $\alpha = 0.05$ level of significance.

A) Yes
B) No