Suppose that in Problem 6-7 ABCD was confounded in replicate I and ABC was con-founded in replicate II. Perform the statistical analysis of this design.

Problem 6-7

An experiment was performed to improve the yield of a chemical process. Four factors were selected, and two replicates of a completely randomized experiment were run. The results are shown in the following table:

 

Transcribed Image Text:

Replicate Replicate Treatment Combination Treatment I II Combination II (1) 90 93 d 98 95 a 74 78 ad 72 76 81 85 bd 87 83 ab 83 80 abd 85 86 77 78 cd 99 90 ас 81 80 acd 79 75 bc 88 82 bcd 87 84 abc 73 70 abcd 80 80