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. one hundred people from the pharmacys customer list are selected at random, called on the phone, and asked. those customers who buy toothpaste with a coupon are selected, and the toothpaste brand they purchased is recorded. every 10th customer who enters the pharmacy on 1 day is selected and asked. a survey is sent to the customers who are on the pharmacys frequent buyer list.
Answer
# Brief Explanations:
1. Selecting customers who buy toothpaste with a coupon may be biased as coupon - users may have different brand - preference behavior (e.g., more price - sensitive).
2. Selecting every 10th customer who enters the pharmacy on 1 day may be biased as that day's customers may not be representative of all customers (e.g., it could be a day with a special promotion).
3. Sending a survey to customers on the frequent - buyer list may be biased as frequent buyers may have different brand preferences compared to all customers.
# Answer:
- Those customers who buy toothpaste with a coupon are selected, and the toothpaste brand they purchased is recorded.
- Every 10th customer who enters the pharmacy on 1 day is selected and asked.
- A survey is sent to the customers who are on the pharmacy's frequent buyer list.