Back to: Chapter 16: Simple linear regression and correlation

## 6 thoughts on “Standard Error of the Estimate (Preview)”

1. Hey Jason, how did you get 28.7 value??
if ^y= -4.4842 + 3.2610 (10) = 28.1258

^y – y = 28.1258 – 27 = 1.1258

1. ok so I rearranged the formula as y – ^y but I get -1.1258 if we plug x= 10 and y = 27

2. Hey Jason aint SSE^2 is going to be Y- Y hat ?

1. If you mean the residuals, then yes. I made a mistake with the order I wrote the formula in. It should be:

The correct formula for residuals: ei = y – ŷ
3. HI I wanted to know in chp 16 can the SSE be a negative number? because I keep getting that value from a midterm question in summer 2014 exam that I am practicing from. Since that is the case my calculator can not give square root of a negative number to determine Se.

1. The SSE cannot be negative. Can you post the question here so that I can have a look at it for you? There are some simple methods for checking the math that I can use to figure out where the problem may be happening.