Answer:
Mrs. Barnes washed more.
Step-by-step explanation:
Answer:
the last one luv Tpwk Byeeee now
Step-by-step explanation:
I Think, if the other person gets it right listen to them
Given :
p = 0.68
margin of error, E = 0.1
99% confident interval
alpha, α = 1 - 0.99
= 0.01

∴
(z-critical value)
Sample size = 


= 144.37
= 145 (rounded off)
Therefore, there are 145 businesses does she need to sample to meet this criteria.