(Dont copy)

A food scientist designed an experiment to compare the fat content of chicken nuggets as a function of three types of batter (rice, corn, wheat). Ten batches of nuggets per type of batter were prepared with five nuggets per batch. All thirty batches were prepared individually and separately, then stored for 24 hours in their own individual freezer bags. Frying took place in one session in ten consecutive runs of a single fryer. For each run, there were three batches of nuggets, that is, one batch per type of batter and each in its own separate frying basket. Fat content was obtained by nugget, not by batch. Hence, each basket by run yielded five individual fat content measures for a total of 150 y- values.

what is the experimental units?

Are observations correlated by batch?

Are observations correlated by run?

Are observations correlated by type of batter?

1. Nugget effects would ...... would not ....... be specified as nested effects in the model.
2. Batter effects and run effects are .........are not ........... cross-classified.
3. Batch effects and run effects are ........... are not ............cross-classified.