Express gas station is conducting a consumer satisfaction survey. Which method of collecting data would most likely lead to a biased sample? ( ) A. interviewing every 5th customer to come into the station B. interviewing customers chosen at random by a computer at the checkout C. interviewing customers who are VIP members with the gas station. D. interviewing every customer who comes into the station on a day of the week chosen at random.
Added by Richard W.
Step 1
Interviewing every 5th customer to come into the station: This method is systematic sampling, which can be a good way to obtain a representative sample as long as the sampling interval is not biased. However, it may lead to a biased sample if the customers who Show more…
Show all steps
Close
Your feedback will help us improve your experience
Adi S and 86 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A car dealership conducts a phone survey to determine customer satisfaction. The dealership would like to use a stratified sample based on the type of vehicle purchased: Type of Vehicle SUV/Truck Minivan Midsize Car Economy Car Sports Car Number of Customers 858 1213 478 987 221 a) What is the population? b) If the dealership wishes to conduct 250 surveys, how many calls should it make for each type of vehicle? c) Why would the dealership choose to do a phone survey rather than mailing a survey to each customer?
Frank D.
Keerti J.
Which of the following samples suffers from convenience sampling? a Sampling 30 students from a list of all students and asking them, on average, how much time they spend on social media sites each day. b Sampling all employees at a certain business and asking them how the feel about the management and working conditions. c Sampling the first 500 fans that attend a baseball game and asking them their opinion on how well the team is doing. d Sampling the residents in a large city who return a survey that was mailed to each resident about what should be done about traffic in the city.
Thuc N.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD