13. A new stop sign is put up in a neighbourhood of about 200 houses. A resident wants to determine what her neighbours think about the sign. Which of the sampling techniques described below is most appropriate? Justify your choice. i) She decides to sample 25% of the houses in the neighbourhood. She randomly selects a house to start at and then goes to every fourth house and asks her survey question. ii) She stands for an hour in the morning and an hour in the evening at the intersection that has the new stop sign. When people stop, she asks them her survey question. iii) She takes a page out of the city phone book and calls every 10th name to ask her survey questio