A group of college students is conducting a survey to determine the average age of Walmart shoppers. Should they poll every Walmart shopper or use random selection to complete their survey
To determine the average age of Walmart shoppers, it would be more practical and efficient for the group of college students to use random selection to complete their survey. Polling every Walmart shopper would require a significant amount of time and resources, which may not be feasible for the group.
By using random selection, the college students can create a representative sample of Walmart shoppers. They can randomly select a specific number of shoppers from different Walmart locations or at different times of the day to ensure a diverse sample. This method allows them to collect data from a variety of age groups and demographics, providing a more accurate estimate of the average age of Walmart shoppers.
Random selection ensures that the sample is not biased and reduces the chances of excluding any specific group of shoppers. It is important to note that a larger sample size generally leads to more accurate results, so the group should consider the appropriate sample size based on their resources and time constraints.