Consider this claim: The model for data that says each observation of is a sample from a normal distribution with mean and variance is a special case of the simple regression model. Do you agree? ...

Consider this claim: The model for data that says each observation of

is a sample from a normal distribution with mean

and variance

is a special case of the simple regression model. Do you agree?

Explain why a two-sample comparison of averages can be considered a special case of a regression model. (Hint: Consider assigning the value

to one group and
to the other.)