From topics in Exam $2,$ which statement is true:

Group of answer choices

The most accurate forecasting method has the smallest Mean Squared Error

When using the mini$-$max regret approach, the state of nature is known before the decision is made.

In Regression, the goal is to find variables that have positive relationships

EV w$/$o PI $-$ EV w$/$ PI $=$ EV of PI

In exponential smoothing, a larger smoothing constant results in a higher weight assigned to previously forecasted data