Tutoring ABC company hires you to find how many people buy t…
Tutoring ABC company hires you to find how many people buy tutoring services over YELP. How many adults need to be surveyed for 99% CL that sample is no more than 4% n= ((Z_(a/2)) ^2 (p)(q)/ (E)^2 or n= ((Z_(a/2)) ^2 (.25)/ (E)^2 Census reveals 75% use tutoring service online p= q= Z_(a/2) =