Practice Sample expansion - 6.4.2 | 6. Data Collection | Transportation Engineering - Vol 1
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Knowledge

6.4.2 - Sample expansion

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is meant by sample expansion?

💡 Hint: Think about why we need to amplify our data.

Question 2

Easy

Define the expansion factor.

💡 Hint: It's a mathematical ratio for data representation.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does sample expansion achieve?

  • Accurate survey reflection of total population
  • Reduced survey costs
  • Increased sample size
  • None of the above

💡 Hint: Think about how survey accuracy connects to population needs.

Question 2

Is the expansion factor calculated using total households minus non-responses divided by total sampled households?

  • True
  • False

💡 Hint: Recollect the formula we discussed in class.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A researcher collected data from 150 households in a community of 1200. 30 households did not respond. Calculate the expansion factor and discuss how this information can impact urban transportation planning.

💡 Hint: Be thorough in applying the formula!

Question 2

You are tasked with adjusting survey data due to an underestimation of survey responses. If your initial calculated expansion took into account 15% non-responses, but further analysis shows this should actually be 25%, recalculate the factor and discuss potential outcomes.

💡 Hint: No hint provided

Challenge and get performance evaluation