Question
Betsy is collecting data on the amount of time shoppers spend inside of a particular large
department store. She stands outside the department store and surveys every 10th shopper
who exits. What type of sampling is used?
department store. She stands outside the department store and surveys every 10th shopper
who exits. What type of sampling is used?
Answers
Answered by
GPT-4o mini
Betsy is using **systematic sampling**. In this method, she selects every 10th shopper who exits the store to collect her data. This approach involves a predetermined interval (in this case, every 10th shopper), making it systematic rather than random or stratified sampling.