This is Dataplot data file CORNELL4.DAT
Effect of Juice Composition on Lemonade Flavor
2-Factor Unconstrined Mixture
(2,4) Simplex Lattice Design
Source--Cornell, John A. (1990).
ASQC Statistics Division Volume 5:
How to Run Mixture Exeriments for Product Quality.
Page 4 (Table 1).
Response Variable = flavor rating
Number of observations = 5
Number of variables per line image = 3
Order of variables per line image--
Response variable = lemon flavor rating (large => good)
Factor 1 = juice A proprotion (0 to 1)
Factor 2 = juice B proprotion (0 to 1)
Project Question--What settings for the 2 ingredients
maximize the lemonade flavor rating?
Statistical area--mixture design of experiment
To read this file into Dataplot--
SKIP 25
READ CORNELL4.DAT Y X1 X2
Y X1 X2
Flavor Juice A Juice B
Rating Proportion Proportion
---------------------------------
8.0 1 0
8.2 .75 .25
7.4 .50 .50
4.7 .25 .75
2.0 0 1