Questions
1)
2)
3)
4)
147 students took Exam 1.
30 questions were on the exam.
The lowest score earned on the exam was an 11 out of 30.
The mean score on the exam was a 22.98 out of 30. The median score was a 23.5 out
of 30. I think the median score is hi
Chapter11JMPAssignment1
Inthisassignment,youaregoingtorecreatethedataandstatisticsfoundinTables11.1
(p.209)and11.2(p.225)inyourtextbook.Also,withabitofluck,youwillalsoseesome
connectionsthatyoumostlikelywouldmissfromjustreadingthebook.Note:because
this
Courtright Exam #2 (Book Outline)
CHAPTER 5 (PAPER-AND-PENCIL TESTS AND RATING SCALES)
Beginning Summary
- Measurement scales and paper-and-pencil instruments are heavily used in social sciences,
including comm. research
- Several advantages
o Efficient w
I do not believe this is a normal distribution. The mean, median, and mode are the
same and are in the 50th percentile, but the mean is not the highest-ranking number
in the set. The curve would not be normal.
Distributions
Y on Page 151
Normal(21,4.48229
1. The first thing I noticed about the mosaic plot was that the emotions angry and
sad were most prevalent. In other words, the colors that represented those
emotions covered more of the chart than the colors of happy and loving. This
led me to conclude t
Do you think these data form a normal distribution? In no more than a couple of sentences, what
part of the analysis prompted you to give that answer?
-I do not think that these data form a normal distribution because the box highlighted between 15
and 17
1. 147 students took the exam
2. 30 questions were on the exam
3. The lowest score was 11 out of 30
4.
Mean score: 22.98; Median: 23.5; I think the median is higher than the
mean because there are extreme scores at both ends included in the
measurement an
Distributions
Lonely
Quantiles
100.0%
99.5%
97.5%
90.0%
75.0%
50.0%
25.0%
10.0%
2.5%
0.5%
0.0%
maximum
quartile
median
quartile
minimum
8
8
8
8
7
7
6
5
5
5
5
Summary Statistics
Mean
Std Dev
Std Err Mean
Upper 95% Mean
Lower 95% Mean
N
Sum Wgt
Sum
Variance
COMM301 Test 2 Review
Principles of Measurement
Uses of Measurement Scales
o Measurement States and Traits
Traits - enduring attributes of the individual and not
situationally bound, it must be cross-situationally consistent
Ex) personality, shyness, a
COMM301 Test 3 Review
From Description to Inference
Criteria for Inference
o The observations are independent
Gathered independently
No measurement or score effects or is effected by any other
measurement or score
The violation of this requirement cou
Looking at the Contingency Mosaic Plot, it depicts the correct responses in
columns at the bottom, while the obtained responses are represented by the colors
orange, blue, green and red. Red, as well as the number 1, stand for a happy tone of
voice. Green
INTRO TO COMMUNICATION RESEARCH METHODS
COMM 301
Instructor: John A. Courtright
Office: 235 Pearson Hall
Office Hours: by appointment
Phone: Office 831-8041
E-Mail: [email protected]
Course Description
At the University of Delaware, Communication is defined,
Directions for Installing JMP
1. Open your web browser to: https:/udeploy.udel.edu/
2. Select either Windows Software or Macintosh Software
3. Select Scientific and Research Software
4. Select JMP
5. Read the page and then select Obtain JMP 10
6. Log in u