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Topic: Collecting Data (Higher - Unit 1)

Specification References: S1 S1 Understand and use the statistical problem solving process which involves specifying the problem and planning collecting data processing and presenting the data interpreting and discussing the results.

Candidates should be able to:

• answer questions related to any of the bullet points above
• know the meaning of the term ‘hypothesis’
• write a hypothesis to investigate a given situation
• discuss all aspects of the data handling cycle within one situation
• include sampling as part of their understanding of the DHC. Candidates will be expected to choose suitable sampling methods and discuss bias 
• discuss their findings in depth with awareness of their significance

Notes

Questions may be set which that require candidates to go through the stages of the Data Handling Data Cycle without individual prompts.
Random sampling and the method of stratification to obtain correct proportions within a sample to reflect the population will be tested.

Examples

1. Sally wants to investigate whether food is cheaper at the supermarket at the  weekend compared to with during the week.
    How could she address this problem?
    In your answer refer to the stages of the Data Handling Cycle.
   

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