Question 1
In order to test the following hypotheses at an α level of significance,
H0: μ1- μ2≤ 0
Ha: μ1- μ2> 0
the null hypothesis will be rejected if the test statistic Z is
◦
≤ Zα
◦
≥ Zα
◦
< -Zα
◦
< 0
Question 2
In the analysis of variance procedure (ANOVA), "factor" refers to
◦
the dependent variable
◦
the independent variable
◦
the level of confidence
◦
the critical value of F