BEHAVIORAL SCIENCES STAT-PKG
2nd Edition
ISBN: 9781337205221
Author: Heiman
Publisher: CENGAGE L
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Textbook Question
Chapter 4, Problem 14SP
If you could test the entire population in question 13, what would you expect each of the following to be?
(a) The typical, most common score;
(b) the variance;
(c) the standard deviation;
(d) the two scores between which 68% of the scores lie.
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Question 4
An article in Quality Progress (May 2011, pp. 42-48) describes the use of factorial experiments to improve a
silver powder production process. This product is used in conductive pastes to manufacture a wide variety of
products ranging from silicon wafers to elastic membrane switches. Powder density (g/cm²) and surface area
(cm/g) are the two critical characteristics of this product. The experiments involved three factors: reaction
temperature, ammonium percentage, stirring rate. Each of these factors had two levels, and the design was
replicated twice. The design is shown in Table 3.
A222222222222233
Stir Rate
(RPM)
Ammonium
(%)
Table 3: Silver Powder Experiment from Exercise 13.23
Temperature
(°C)
Density
Surface Area
100
8
14.68
0.40
100
8
15.18
0.43
30
100
8
15.12
0.42
30
100
17.48
0.41
150
7.54
0.69
150
8
6.66
0.67
30
150
8
12.46
0.52
30
150
8
12.62
0.36
100
40
10.95
0.58
100
40
17.68
0.43
30
100
40
12.65
0.57
30
100
40
15.96
0.54
150
40
8.03
0.68
150
40
8.84
0.75
30
150…
Chapter 4 Solutions
BEHAVIORAL SCIENCES STAT-PKG
Ch. 4 - What does a larger measure of variability...Ch. 4 - In any research, why is describing the variability...Ch. 4 - Thinking back on the previous three chapters, what...Ch. 4 - Prob. 4SPCh. 4 - (a) What is the range? (b) Why is it not the most...Ch. 4 - Prob. 6SPCh. 4 - Prob. 7SPCh. 4 - Why is the mean a less accurate description of the...Ch. 4 - Prob. 9SPCh. 4 - (a) What do S2 X, s2 X, and s2 X have in common?...
Ch. 4 - (a) How do we determine the scores that mark the...Ch. 4 - Why are your estimates of the population variance...Ch. 4 - In a condition of an experiment, a researcher...Ch. 4 - If you could test the entire population in...Ch. 4 - Tiffany has a normal distribution of scores...Ch. 4 - From his statistics grades, Demetrius has a X 60...Ch. 4 - Prob. 17SPCh. 4 - Say that you conducted the experiment in...Ch. 4 - In two studies, the mean is 40 but in Study A,...Ch. 4 - Consider these normally distributed ratio scores...Ch. 4 - Prob. 21SPCh. 4 - (a) What are the symbols for the true population...Ch. 4 - For each of the following, indicate the conditions...Ch. 4 - Prob. 24SP
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