If you're going to learn anything in statistics learn this:

My ISDS statistics professor explained this one over and over but somehow it just didn't make sense until a tutor told me the following:

If you're going to learn anything in statistics learn this:

if  p-value < alpha         --> reject the null
that's the rule 100% of the time

The null is just that (NULL - NOTHING- NO CHANGE!)  H0:  MEAN = 0  <-- the null never changes! if there's a change ..then your answer is H1 = which is only saying that its not there's not enough evidence to be H0 (the null)

alpha is usually .05 (can be less tho)
p-value is a proportion!  (This is all assuming normal distribution)

repeat it over and over people ~_~; it can save you many headaches

• also in any F-test you don't care about the left side of the curve..because it starts at 0! that means if you get a negative answer ..you're doing it wrong!

Why would you optimize shit?

Professor Tip:

"Why do you think we look at the structures and processes before you even THINK about making an MRP (or even bigger) ERP program? (lots of students give long winded reasons - efficiency etc etc) SHIT people! you don't want to Optimize SHIT!!  because optimization means getting rid of human input and if you optimize shit! you still get shit!"

MRP: Materials Requirement Planning (just materials not capacity)
ERP: Enterprise Resource Planning (tells you about capacity too: human resources you might need)

Learn Statistics - It can earn you the big bucks

Professor quote of the day:
I don't know why you have to learn calculus! I've used it like 5 times in my career, but this statistics stuff, it can earn you the big bucks, unless you're like Mother Teresa, but if you're like me, a money grubbing little Italian, well, learn the crap out of it but - do it my way, it makes a whole more sense than the way the ISDS nerds do it.

I'm a lawyer!

Professor quote of the day: "Be like me, I'm a lawyer who never tried blow. It's just too damn expensive."