9. Screening experiments should use conservative spacing of the factor levels.

Consider a time series with 200 observations.  Suppose that

2. When using a 2-level factorial design and the block size is not a power of 2, an optimal design can be used to construct an appropriate design.

The variance of the observations from the Hanning filter, if it is applied to a time series consisting of independent observations with constant variance σ2, is

Folding over a resolution III design is a technique to separate main effects from their two-factor interaction aliases. 

You are performing an experiment with a deterministic computer model. A reasonable choice of experimental design is 

Construct a 95% confidence interval for the regression coefficient for X1. The UCL is _______________.  

The advantage of the REML method is that it provides the standard errors of the variance components so that confidence intervals can be easily obtained. 

For a half fraction of a two-level factorial design the maximum resolution possible is equal to the number of factors. 

The random factors in an experiment are assumed to be normally and independently distributed.