GLM Pt. 1

Question 1

Downsides of one-way analysis

Answer 1

• Ignores correlation between rating factors
• Ignores interdependencies between rating factors

Question 2

Assumptions of a linear model with a response variable Y

Answer 2

• Assumes the expected value of Y is µ and can be written as the linear combination of predictor variables
• Assumes the error term epsilon is normally distributed with mean zero and variance the square of standard deviation

Question 3

Linear models consists of what two elements

Answer 3

• Set of assumptions about the relationship between Y and its predictors
• An objective function which is to be optimized in order to solve the problem (likelihood function)