Summarise probability distributions
Get P and critical values for the normal distribution
Calculate P values from the normal distribution, corresponding to specified test
statistic and mean and standard deviation. Also calculates critical values for the same normal
distribution corresponding to the specified alpha (significance) level. Default values of
0 for distribution mean and 1 for standard deviation correspond to the standardised normal
Inputs are the test statistic, mean and standard deviation for the distribution and the specified alpha for calculation of critical values.
The program outputs 1 and 2-tailed P values, 1 and 2-tailed critical values and the probabilities associated with values greater than or less than the observed test value, as well as a summary and plot of the distribution.