Making conclusions about the difference of means

Katie grows two varieties of pears—Bosc and Anjou. She took a sample of each variety to test if their mean weights were significantly different. Here is a summary of her results (weights are shown in grams):

Katie wants to use these results to test ${\text{H}}_0\text{: }{\mu }_{\text{B}}={\mu }_{\text{A}}$? versus ${\text{H}}_{\text{a}}\text{: }{\mu }_{\text{B}}\ne {\mu }_{\text{A}}$?. Assume that all conditions for inference have been met.