Home Chapter 11 Quiz

# Quiz

This activity contains 15 questions.

## Designs in which more than one variable are studied simultaneously are called __________ designs.

 replicate two-tailed factorial sum of squares

## Consider two factors A and B, each with two levels. If there is no interaction between these two factors, the difference in the response variable between the two levels of factor A would be ____________ the difference between the two levels of factor B.

 unrelated to twice equal to half

## For ANOVA models, the levels of a factor can be selected according to the:

 None of the choices are correct. Random-Effects Model. Mixed-Effects Model. Fixed-Effects Model.

Joe, a novice gardener, has never grown tulips and wanted to get an idea of optimal growing conditions. He decided to do a little experimentation and determine the effects of location, watering frequency, and fertilization on tulip growth. His results are summarized in the table below. Refer also to Table 11.6 in the text.

Calculate the estimated effect of factor A, sun versus shade.

 -3.06 -1.23 2.01 1.23

Joe, a novice gardener, has never grown tulips and wanted to get an idea of optimal growing conditions. He decided to do a little experimentation and determine the effects of location, watering frequency, and fertilization on tulip growth. His results are summarized in the table below. Refer also to Table 11.6 in the text.

Calculate the contrast for the interaction of A and B.

 6.36 1.5 2.54 0.8

## The __________ model contains some fixed and some random effects.

 factorial design random-effects fixed-effects mixed-effects

## For the ABCDEF interaction, give the alias of ACD.

 EDF ABC BEF BDF

## Consider a four factorial design with three replications for each combination of factors. If the contrast of factor A is 5.8, the sum of squares value for the effect of A is:

 0.4 0.7 1.2 0.9

## For a four factorial design, find the cumulative percentage for the ordered effect A if the ordered rank of the effect A is 2.

 0.1 25 0.8 2

## A design in which main effects are not confounded with 2-way interactions is called:

 Resolution V designs. Resolution III designs. Resolution IV designs. Resolution VI designs.

## Design parameters are also referred to as:

 environmental factors. outer array factors. inner array factors. noise factors.

## Use of experimental design techniques in the designs stages of a process is referred to as:

 fractional factorial design. factorial design. off-line process control. on-line process control.

## If the effects of two treatment combinations are confounded, that is, if they cannot be separated in a fractional factorial design, one effect is said to be the ________ of the other.

 noise factor alias defining contrast design parameter