Topic 1: Statistical Analysis


Statistical Analysis

Learning Goals (2 hours)
  • State that error bars are a graphical representation of the variability of data.
  • Calculate the mean and standard deviation of a set of values.
  • State that the term standard deviation is used to summarize the spread of values around the mean, and that 68% of the values fall within one standard deviation of the mean.
  • Explain how the standard deviation is useful for comparing the means and the spread of data between two or more samples.
  • Deduce the significance of the difference between two sets of data using calculated values for t and the appropriate tables.
  • Explain that the existence of a correlation does not establish that there is a causal relationship between two variables.