Updated for 2025 Specification:
PPT and handout includes information and activities on the following:
- Levels of measurement
- How to choose a statistical test (including parametric tests)
- Probability and significance levels
- Using statistical tables including degrees of freedom
- Types 1 and Type 2 errors
- How to carry out a sign test including a number of examples with answers
- How to interpret calculated and critical values of other statistical tests with examples and answers
- Degrees of freedom practice questions with answers
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