Causal interference - Inferential statistics
7 important questions on Causal interference - Inferential statistics
Three ways of keeping the standard deviation (SD) and the standard error (SE) apart?
- The standard deviation (SD) measures dispersion in the underlying population.
- The standard error (SE) measures the dispersion of the sample means.
- The standard error (SE) is the standard deviation (SD) of the sample means
- This ties the concepts together.
What is null hypothesis significance testing?
What happens if we reject the null hypothesis?
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What is the alternative hypothesis?
- If the data suggests that the null hypothesis is extremely unlikely then we must reject it and accept the alternative hypothesis.
What is one of the most common thresholds for rejecting the null hypothesis?
What is the confidence interval?
- the confidence level represents the frequency (proportion) of possible confidence intervals that contain the true value of the unknown population parameter.
What are the five inferential statistics?
- Standard error (SE)
- & standard deviation (SD)
- Null hypothesis significance testing
- P-value
- Confidence interval
- Statistical significance
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