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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Strawberries III The following data (Exercises 1and2) were obtained in an experiment relating the dependent variable, y (texture of strawberries), with x (coded storage temperature).
|
x |
-2 |
-2 |
0 |
2 |
2 |
|
y |
4.0 |
3.5 |
2.0 |
0.5 |
0.0 |
a. Estimate the expected strawberry texture for a coded storage temperature of x=-1. Use a 99% confidence interval.
b. Predict the particular value of y when x = 1 with a 99% prediction interval.
c. At what value of x will the width of the prediction interval for a particular value of y be a minimum, assuming n remains fixed?
Exercise:
1. Strawberries The following data were obtained in an experiment relating the dependent variable, y (texture of strawberries), with x (coded storage temperature).
|
X |
- 2 |
-2 |
0 |
2 |
2 |
|
y |
4.0 |
3.5 |
 2.0 |
0.5 |
0.0 |
 2. Strawberries II The following data were obtained in an experiment relating the dependent variable, y (texture of strawberries), with x (coded storage temperature). Use the information from Exercise to answer the following questions:
|
X |
-2 |
-2 |
0 |
2 |
2 |
|
Y |
4.0 |
3.5 |
 2.0 |
0.5 |
0.0 |
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