Question: In regression (as well as in other statistical procedures, such as t-test and ANOVA, although not often discussed), model fit is an important consideration. Answer the following questions about model fit:

(a) What is model fit; what does the term indicate?

(b) How is model fit assessed; what statistics discussed in this course are used to assess model fit?

(c) What information is used to calculate these statistics? Don’t discuss formula; rather focus your response on the actual data/variables/information used to calculate these statistics.