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formula quiz 14
fq14
Question | Answer |
---|---|
test statistic for a linear regression t test | t= b1/sb1 |
degrees of freedom | n-2 |
linear regression t interval | b1 plus or minus t star sb1 |
b1 is | the slope of the regression line based on the sample data and |
sb1 is | s over root n-1 times s of x |
s is the | sample standard devation fo the ersiduals |
formula for s | square root of sigma y minus yhat squared over df |