Northern Arizona University - Practice Test for passing EPS 525: Lesson 14 Quiz ( 3 test with 10 objective type questions each)

Sample questions are as under: (details questions are attached)

#1

The homogeneity of variance assumption is not met, it is invalid to use the t test for independent group.

-True

-False

#2

The power of the t test increases with.....

a.       Increase in N
b.      Increases in the effect of the independent variable
C.  . Decreases in the sample variance(s)

d.      All of the above

e.    a. and b.

#3

The z test for independent group is seldom used because sigma square (lower sigma squared) is unknown.

-True

-False

#4

The power of the t test increases with sample variability.

-True

-False

Thanks,

Ashit Jha