3.6 Probabilities and estimation
S4 Population and sample
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S4.1 |
understanding what is meant by the term ‘population’ in statistical terms |
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S4.2 |
developing ideas of sampling to include the concept of a simple random sample from a population |
S5 The mean of sample size n
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S5.1 |
knowing that the mean of a sample is called a ‘point estimate’ for the mean of the population |
appreciating that accuracy is likely to be improved by increasing the sample size |
S6 Confidence intervals
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S6.1 |
confidence intervals for the mean of a normally distributed population of known variance using |
confidence intervals will always be symmetrical the confidence level required and the sample size will always be stated |