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Course Documents
Chapter 1 - Intro
Chapter 2 - Methods for Describing Sets of Data
Chapter 3 - Probability
Chapter 4 - Discrete Random Variables
Chapter 5 - Normal Random Variables
Chapter 6 - Sampling Distributions
Chapter 7 - Confidence Intervals
Chapter 8 - Tests of Hypothesis: One Sample
Chapter 9 - Confidence Intervals and Hypothesis Tests: Two Samples
Sample Exam I: Chapters 1 & 2
Sample Exam II: Chapters 3 & 4
Sample Exam III: Chapters 5 & 6
Sample Exam IV: Chapters 7 & 8
Lecture Examples
Example 157: The results of a CRD experiment for corn crop yields are given below. The multiple comparison intervals to compare the treatments A, B, C, and D were provided by SPSS. Using the SPSS output below, rank the treatments from lowest to highest, express the results in a diagram using bars to join the means that are not significantly different, and form a confidence interval for the true mean yield (in tons) for the highest of the four treatments.
|
Treatments |
Yields |
|||
|
A |
3.7 |
3.6 |
3.5 |
3.5 |
|
B |
1.2 |
3.4 |
3.1 |
2.5 |
|
C |
0.5 |
1.0 |
0.7 |
0.6 |
|
D |
1.3 |
3.0 |
3.3 |
2.6 |
|
Source |
DF |
SS |
MS |
F |
P-value |
|
Treatments |
3 |
17.212 |
5.737 |
12.875 |
0.0005 |
|
Error |
12 |
5.348 |
0.446 |
|
|
|
Total |
15 |
22.56 |
|
|
|
STATS1
STATS2
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