PSYC 204/POTH 204 ASSIGNMENT # 3 | Complete Solution

INTRODUCTION TO PSYCHOLOGICAL STATISTICS - PSYC 204/POTH 204
A S S I G N M E N T # 3 ( 9 p o i n t s )

WORK MUST BE INDEPENDENT, COMPLETE and NEATLY ORGANIZED.
SHOW YOUR WORK.
Assignments will be returned Tuesday, November 24th and resubmissions are due on
Tuesday, Dec. 1 in class. Please attach corrections to the back of your original assignment.
You may ask for help with the corrections, but please cite all sources.
Assignments that are marked ‘Accepted’ need not be resubmitted.
The following data was collected from a group of PSYC 204 students:
Subject # Age Anxiety Expected
Grade
Study
Hrs
# Prev Math
Courses
Most important
for success
1 22 1.5 A 5 5 passion
2 20 8 A 9 3 work
3 19 11 C+ 4 3 curiosity
4 19 6 A 17 1 work
5 19 2 A 6 1 work
6 20 1 A 4 4 work
7 19 7 A- 7.5 2 work
8 18 3 A 8 4 work
9 20 8 A- 8 1 work
10 19 8 B 8 0 work
11 18 3 A 6 1 work
12 18 7 C+ 7 0 patience
13 22 1.5 A 5 5 passion
14 20 8 A 9 3 work
Specify which test would be used for each of the following hypotheses. For each, state:
a) the hypotheses
b) the df
c) the critical value
For hypotheses 3, 4 and 5, also:
d) Conduct the test
e) write a short report:
1) The expected grades are not uniformly distributed.
2) Anxiety ratings are inversely related to the number of previous math courses.
3) Students who think that work is the key to success plan to study more than students
who name some other characteristic.
4) The average age is greater than 18.
5) Expected grade (A vs not A) is related to the key characteristics for success (work
vs not work)