An investigator conducts an experiment involving the effects of three levels of a drug on memory. Subjects are randomly assigned to one of three conditions. A different drug level is administered in each condition. Memory is measured 10 minutes after each subject receives the drug. The following scores are recorded. The higher the score, the better the memory. 
Assume you are doing planned comparisons, using a = .05. The critical value is _________.
Definitions:
Q3: To answer this question, refer to the
Q4: The 95% confidence interval means that 95%
Q24: The conclusion regarding the interaction is _.<br>A)
Q62: Referring to question 29, the probability of
Q65: The t distribution is a family of
Q93: What are the assumptions underlying the z
Q99: The Wilcoxon signed ranks test _.<br>A) is
Q113: The section, "What Is The Truth-Statistics and
Q114: The ANOVA is robust regardless of whether
Q157: The Scheffé test allows only post-hoc testing