The college is planning to add a food vender in the student union and would like to know what type of food service the students would prefer. A sample of 60 students is obtained and each student is asked to select his/her preference from a coffee shop, a pizza place, a hamburger grill, or a taco shop. The resulting frequency data are as follows:
Coffee Pizza Hamburger Tacos
a.) Do the data indicate any significant preferences among the four types of food service? Test at the .05 level of significance.
b.) What is the effect size?
Explain answer and show work, please.