A quality analyst at Paintfast Manufacturing Co. wants to determine if a new paint formulation, used to paint parts for a customer’s assembly operation will dry fast enough to meet the customer’s needs. The customer would prefer to obtain a high level of “dryability” at low temperatures, even if it requires a higher level of drying agent. He hypothesizes that a high level of drying agent will result in high dryability, high temperature—alone—will result in a moderately high level of dryability, and low temperature or a low level of drying agent will result in a low level of dryability. He hopes that the main and interaction effects with the temperature, which is expensive (because an oven would need to be used), will be minimal. The data found in the worksheet Prob05-18 in the Excel workbook Ch05Data.xlsx were gathered in testing all combinations. What recommendation would you make?

 

Problem 5-18
Paintfast Manufacturing Co.
22 Factorial Experiment
Enter data ONLY in yellow-shaded cells.
Description	Name	Low level	High level
Factor 1	Drying agent	10 mg.	20 mg.
Factor 2	Temperature	80 degrees	100 degrees
Treatment	Factor 1	Factor 2	Response=Dryability
A	Low	Low	78
B	High	Low	91
C	Low	High	85
D	High	High	87
Main Effects
Factor 1	7.50
Factor 2	1.50
Interaction
Factor 1 x Factor 2	-5.50

Transcribed Image Text:

95 90 85 80 75 70 Low High Factor 2 High Factor 2 Low