Given a one independent variable linear equation that states cost in $k and given the following information calculate the standard error and determine its meaning.

n=10

summation of (y-yhat)2= 10591, ybar=314.375

which in is correct

*if we use this equation we could expect to be off by +- $42.01k

**if we use this equation we could expect to be off by +- $42.01%

*if we use this equation we could expect to be off by +- $36.39k

*if we use this equation we could expect to be off by +- $36.39%