One difference between sampling and nonsampling errors is that as sample size
increases, sampling errors will while nonsampling errors .
a. decrease; may even increase
b. increase; decrease
c. remain the same; may even increase
d. increase; remain the same
e. decrease; remain the same
Which of the following is NOT a necessary assumption for the application of the
analysis of variance (ANOVA)?
a. Samples are independent.
b. The variable is normally distributed.
c. The variance is the same for each treatment.
d. More than two means are being compared.
e. All of the above are necessary assumptions for the application of ANOVA.
When there is one source of extraneous variation distorting the results of an experiment,
the preferred experimental design is
a. a contingency table.