Lesson 1a.03

1a.03 Determine proactive strategies to mitigate issues that might arise during the... Quiz: Pearson Edexcel Statistics, Unit 1

20 questions

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Lesson 1a.03, Determine proactive strategies to mitigate issues that might arise during the...: 20 multiple choice questions for the Pearson Edexcel GCSE Statistics (1ST0), Unit 1: The collection of data, written with Revision Ninja.

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The 20 questions

  1. What is a proactive strategy in statistical planning?

    • Ignoring errors
    • Guessing results
    • Deleting outliers
    • Anticipating problems

  2. Which issue is specifically named as needing mitigation in the specification?

    • High accuracy
    • Normal distribution
    • Data symmetry
    • Non-response

  3. What issue occurs when boundaries of a target group are unclear?

    • Identifying population
    • Data cleaning
    • Scale selection
    • Hypothesis testing

  4. Which method best reduces the impact of survey non-response?

    • Shorter title
    • Follow-up contact
    • Fewer questions
    • Smaller sample

  5. What term describes results that contradict the original hypothesis?

    • Unexpected outcome
    • Discrete variable
    • Raw data
    • Control group

  6. How should researchers prepare for expected survey non-response?

    • Stop survey
    • Ignore gaps
    • Larger sample
    • Change hypothesis

  7. What strategy helps when a complete population list is unavailable?

    • Total census
    • Exact average
    • Random guess
    • Alternative frame

  8. What proactive step follows discovering a confusing survey question during a pilot?

    • Enlarge scale
    • Delete data
    • Ignore feedback
    • Revise question

  9. How should missing historical records be handled in an investigation?

    • Double values
    • Delete study
    • Invent figures
    • Note limitation

  10. Which proactive strategy matches the issue of survey non-response?

    • Round numbers
    • Change scale
    • Follow-up contact
    • Group data

  11. What is the correct action when data contradicts the hypothesis?

    • Alter figures
    • Report honestly
    • Reverse axes
    • Hide results

  12. How can you best judge possible bias from a low survey response rate?

    • Print fewer forms
    • Ignore missing data
    • Compare non-responders
    • Extend the deadline

  13. A researcher expects 40% non-response and needs 300 usable responses. Roughly how many questionnaires should be sent?

    • About 420
    • About 300
    • About 340
    • About 500

  14. Of 240 questionnaires sent, 180 were returned. What is the response rate?

    • 70%
    • 80%
    • 75%
    • 60%

  15. A researcher expects a 25% non-response rate. How many questionnaires must be sent to get 150 usable replies?

    • 200
    • 225
    • 188
    • 150

  16. What is a key benefit of an unexpected outcome in statistical research?

    • Invalidate the sample
    • Prompt new questions
    • Increase survey cost
    • Prove the hypothesis

  17. What is the best strategy when dealing with an unclear population before sampling?

    • Define inclusion rules
    • Remove outliers
    • Random guessing
    • Enlarge the sample

  18. Which strategy best handles potential issues in a long statistical investigation?

    • Work faster
    • Guess results
    • Plan ahead
    • Change questions

  19. Expected 200 responses, but only 130 arrive, and 10 of those are incomplete. How many usable responses remain?

    • 110
    • 140
    • 130
    • 120

  20. A plan aims for 340 usable responses and expects only 85% of questionnaires to be usable. What sample size is needed?

    • 420
    • 400
    • 391
    • 357

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