A glass manufacturing company wanted to investigate the effect of breakoff pressure and stopper height on the percentage of breaking off chips. The results, stored in Glass1 , were as follows:

At the 0.05 level of significance,

a. is there an interaction between the breakoff pressure and the stopper height?

b. is there an effect due to the breakoff pressure?

c. is there an effect due to the stopper height?

d. Plot the percentage breakoff for each breakoff pressure for each stopper height.

e. Discuss the results of (a) through (d).

Transcribed Image Text:

STOPPER HEIGHT BREAK OFF PRESSURE Twenty Twenty-Five Two 0.75 1.75 Two 1.00 0.50 0.00 Two 0.00 Two 1.00 0.25 2.25 Three 1.50 Three 1.50 1.25 Three 0.25 0.25 0.75 Three 0.75