The owner of a restaurant that serves Continental style entres has the business objective of learning more

The owner of a restaurant that serves Continental style entrées has the business objective of learning more about the patterns of patron demand during the Friday to Sunday weekend time period. She decided to study the demand for dessert during this time period. In addition to studying whether a dessert was ordered, she will study the gender of the individual and whether a beef entrée was ordered. Data were collected from 630 customers and organized in the following contingency tables:

a. At the 0.05 level of significance, is there evidence of a difference between males and females in the proportion who order dessert?

b. At the 0.05 level of significance, is there evidence of a difference in the proportion who order dessert based on whether a beef entrée has been ordered?

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GENDER DESSERT ORDERE Male Female es No Total 50 250 300 96 234 330 Total 146 484 630 DESSERT ORDERED Yes No Total BEEF ENTREE Yes 74 123 197 Total 142 488 630 68 365 433