Question

a cell phone company wants to determine the average amount of data that their smart phone customers use each month. which group would best represent a sample of the population?
one thousand of their customers with the most expensive monthly plans
one thousand of their customers who most recently signed up with the company
one thousand of their customers with a current smart phone data plan
one thousand of their customers who called in for technical support

Explanation:

To determine the average data usage of smartphone customers, the sample should be relevant to the population (smartphone data - plan users).

• Customers with the most expensive plans may not be representative (could have different usage patterns).
• Newly - signed - up customers may have different usage (e.g., honeymoon period with data).
• Customers who called for technical support may have issues (not normal usage)
• Customers with a current smartphone data plan are part of the population of interest.

Answer:

one thousand of their customers with a current smart phone data plan