How do I calculate 95% confidence level?
How do I calculate 95% confidence level? For a 95% confidence interval, we use z=1.96, while for a 90% confidence interval, for example, we use z=1.64. What is 95% level of confidence? The Z value for 95% confidence is Z=1.96. How do you calculate confidence in data mining? The confidence of an association rule is the support of (X U Y) divided by the support of X. Therefore, the confidence of the association rule is in this case the support of (2,5,3) divided by the support of (2,5). i.e. a number of transactions in which both A and B are...