1.What would be the most appropriate test of significance for research situations in which we have an interval-ratio dependent variable and an independent variable with three or more categories?

a.The t test

b.Chi square

c.ANOVA

d.The IQV

2.ANOVA may be thought of as an extension of the ______________.

a.confidence interval estimation procedure

b.t test for the significance of the difference between two sample proportions

c.t test for the significance of the difference betweentwo sample means

d.t test for the significance of the difference between two matched samples

3.Stated generally, the null hypothesis for the ANOVA test is

a)m1 = m2 = m3 = ... = mk

b)s1 = s2 = s3 = ... = sk

c)SST = SSB = SSW

d)dfb = dfw