The owner of a restaurant that serves continental-style entrees wants to learn more about the patterns of patron demand during the Friday-to-Sunday time period. She has decided to study the demand for dessert during this period. In addition to studying whether dessert was ordered, she will study whether a beef entree was ordered. Data were collected form 630 customers. Of the 197 patrons who ordered a beef entree, 74 ordered dessert. Of the 433 patrons who did not order a beef entree, 68 ordered dessert. At the 0.05 level of significance, is there evidence of a difference in the proportion who order desert based on whether they ordered a beef entree?
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