Has anyone ever heard of this?? If the ABS(t-statistic)>2, reject Ho: x=0. (assuming 5% sign level and n-2 df; which is pretty standard). I remember it from my econ/econometrics class; might save you a few minutes looking at the t-table come exam day!! Seems like the QA is regurgitating the class i took, lol. On a different note, I sure hope the exam won’t ask us to calculate regressions or even SST, RSS, SSE, R^2, F etc. Numerous data analysis software do this and its pretty silly to ask anyone to calculate them seeing they’ll never need to do it in the real world. Who does ANOVA manually??
for those reasons alone, I expect a question or two asking us to calculate SST,RSS,SSE, R^2, t-stat, slope coefficient, and intercept 1. sample variance of a regression: total variation / (n-1) 2. sample standard deviation: square root of sample variance 3. slope: cov x,y / variance x 4. intercept: (sample mean of dependent variable) - (slope)(sample mean independent variable) **all of which are questions from end of reading 11
I was talking about RSS, SSE, SST, R^2, even MSR & MSE; pretty much an ANOVA calculation. I would hope they’d expect us to know the items you listed. Those are all L1 stuff.