Chapter 13 Study Guide
I. Use of the t test indicated when:
The mean of the null Hypothesis population can be specified
Standard deviation is unknown (which also means the z test cannot be used)
II. Sampling Distribution of t
A. Definition: the sampling

1
Random Sampling and Probability Problems
First, lets look at a series of problems employing the multiplication and addition rules as well as some that sample
with and without replacement. For each of these problems, attempt to work them out before you l

Practice Problems and Their answers Call with Questions
Exercises
For the following problems assume the Null Hypothesis Populations are normally
distributed.
1. What is the critical value for z for each of the following alpha levels?
a. 0.052tail
b. 0.012

1-Sample t-tests (Part 1)
This handout will walk through a practice 1-sample t-test problem. I have included a rather lengthy SPSS tutorial at
the end for further illustrations (and to show you that my math isnt all that bad!)
I have worked with other sta

Quiz 2 Fall 2015 Psych 541 Online 25 points
`Key
1. A certain university maintains a colony of male mice for research purposes. The ages of the mice
are normally distributed with a mean of 60 days and a standard deviation of 5.2. Assume you randomly sampl

Psychology 541 Online Advanced Univariate Statistics Quiz 3 Fall 2016 sec 02
1. Assume the binomial distribution is appropriate. If N = 6 and P = 0.50, the probability of getting
exactly 5 P events = ?.
a.
b.
c.
*d.
0.1094
0.0156
0.0609
0.0938
2. A cat lo

Quiz 1 Fall 2016-Indicate the correct answer key
1.
A
a)
b)
c)
d)
Which of the follow correlations indicated the strongest relationship between two variables?
-.95
0.04
.87
.10
2. Consider the following experiment which was designed to examine the effects

Quiz 4 Fall 2016-Key
1. A 9th grade high school teacher is interested in determining whether the students in her classroom
are any better or worse at reading comprehension than the average 9th grade high school student.
She samples 25 students from her cl

Psyc 541 section 02 Quiz 5 Fall 2016 Key
25 points
_b_ 1. Student's t test for correlated groups really reduces to _.
a. the sign test
b. Student's t test for single samples using difference scores
c. Students t test for independent groups
d. none of the

Binomial Examples
1.
Assume that 25% of the population is left handed and the remainder is right
handed (there are no ambidextrous individuals). If you stop the next five people you meet
what is the probability that
A. All will be left handed?
For the fol