23.The sampling distribution of the mean is

A.the distribution of sample means over repeated samples.

B.the distribution of the population mean over many populations.

C.the mean of the distribution of the sample.

18.The number of degrees of freedom for aX² goodness-of-fit test is

A.k - 1.

B. n - 1.

C. N -k.

16.How many interactions are possible for a 3 x 3 factorial design?

A.0

B.1

C.9

2.Which of the following isNOT one of the assumptions we make when we do one-way between-subjects ANOVA?

A.All conditions of the single independent variable contain independent samples.

B.Each sample represents a normally distributed population of interval or ratio scores.

C.The means of the populations represented are homogeneous.