a pharmacy wants to survey its customers to f...
a pharmacy wants to survey its customers to find out which brand of toothpaste they prefer. which survey methods are likely to be biased? select each correct answer. a survey is sent to the customers who are on the pharmacys frequent buyer list. one hundred people from the pharmacys customer list are selected at random, called on the phone, and asked. every 10th customer who enters the pharmacy on 1 day is selected and asked. those customers who buy toothpaste with a coupon are selected, and the toothpaste brand they purchased is recorded
Answer
# Brief Explanations:
- Sending survey to frequent - buyer list: Frequent buyers may have different preferences than all customers.
- Selecting customers who buy with a coupon: Coupon - users may have different brand - preference patterns (e.g., more price - sensitive).
- Selecting every 10th customer on 1 day: Day - specific and time - specific customers may not represent all customers.
- Random selection from customer list is less likely to be biased as it gives every customer an equal chance.
# Answer:
A. A survey is sent to the customers who are on the pharmacy’s frequent buyer list.
C. Every 10th customer who enters the pharmacy on 1 day is selected and asked.
D. Those customers who buy toothpaste with a coupon are selected, and the toothpaste brand they purchased is recorded.