A restaurant supply store surveys all chefs in the area and finds that 64 of the 85 head chefs in the area prefer their stores to the other restaurant supply store in town. To increase their sales, they are doing a statistical study of all chefs in the area. In the sampling distribution of sample proportions of size 20, above what proportion will 80% of all sample proportions be? Select all answers that apply to your calculation below. Use the z-table given below to answer the