Session 2 New Quiz

A university wants to survey student satisfaction across its four faculties: Science, Arts, Engineering, and Business. The number of students in each faculty varies significantly. Which of the following sampling methods would be the best?

• Selecting 300 students randomly from the entire university student list
  

• Randomly selecting one faculty and surveying all its students

• Dividing students by faculty and randomly selecting students from each group in proportion to the faculty size
  

• Surveying only the students who voluntarily respond to a university-wide email

A national education board wants to evaluate teaching quality in high schools across the country. Visiting every school is not feasible due to resource limitations.

Question:
Which of the sampling method is the best approach?

• Selecting schools at random from each district and then surveying all teachers in those schools
  
  

• 
  Randomly picking individual teachers from a national teacher registry

• 
  Selecting a random sample of students from each grade level in every school
  

• 
  Asking for volunteers among teachers across all schools

To understand shopping behavior, a supermarket manager asks cashiers to survey every 5th customer during peak hours.

Question:
Why is this not an example of a truly random sampling method?

• Peak-hour customers may not represent typical shoppers
  
  

• 
  Every 5th customer is too frequent

• 
  Cashiers may forget to ask every 5th customer
  

• 
  Customers shop in groups

A retail company wants to evaluate customer satisfaction by sampling receipts from their last 10,000 transactions.

Question:
Which method best reflects systematic sampling?

• Randomly picking 500 receipts from the pile of 10,000
  
  

• 
  Choosing every 50th receipt from the list of transactions
  

• Sampling receipts from the first 500 transactions
  

• Sending surveys to customers who made complaints recently

A medical researcher wants to study the dietary habits of adults in a city. He has a complete list of 5,000 adults obtained from health records.

Question:
Which of the following methods will give him the most representative result?

• Selecting names alphabetically until 500 participants are chosen
  
  

• 
  Randomly selecting 500 individuals using a random number generator from the complete list
  

• 
  Asking for volunteers through social media advertisements
  

• Surveying all patients who visited the city hospital last month

A news outlet wants to gauge public opinion on a political issue. They publish a poll on their website and ask readers to participate.

Question:
What kind of sampling method is being used?

• Random sampling
• Stratified sampling
• Systematic sampling
• Convenient (Self-selected) sampling

A city council wants to assess the effectiveness of its public transportation system. Due to budget constraints, they cannot survey every user.

Question:
What is the most appropriate sampling method to use?

• Surveying every 10th passenger who boards a bus
  

• Randomly selecting passengers from a list of all bus riders
  

• Asking for feedback from passengers who voluntarily fill out a form
  

• Surveying only those who use the transportation system during peak hours

A company wants to understand employee satisfaction across its various departments. They decide to send out a survey to all employees.

Question:
What type of sampling method is being employed?

• Stratified sampling

• Simple random sampling

• Cluster sampling

• Convenience sampling

A researcher is studying the impact of a new teaching method on student performance. They have access to a complete list of all students in a school.

Question:
Which method would yield the most accurate results?

• Randomly selecting students from the complete list using a random number generator
  

• Choosing students based on their grades
  

• Surveying students who are willing to participate
  

• Surveying only students from the top-performing classes