> Who cares about z-tables and chi values? I think the problem is how these concepts are taught, not the concepts in and of themselves. Too many people leave

> Who cares about z-tables and chi values? I think the problem is how these concepts are taught, not the concepts in and of themselves. Too many people leave their graduate-level stats courses (that they take for X scientific/engineering/sociological discipline) believing that 0.90, or 0.05, or 1 SD are somehow magical values. Too few students understand the concepts behind them (I had to work hard on my own to gain a glimpse into them).