12..4.5. Verify that C3 = f! µ,A + f! µ.B - µ,c - %µ,D is orthogonal lo !he Ci and C2 of Case Study 12.4.1. Find SSc3 and illustrate the statement of Theorem 12.4.L
124.6. For many years oodium nitrite has been used as a curing agent for bacon, and until recently it was I.bought to be perfectly harmless. But now it appeJirs that during fryillg, sodium nitrite induces the formation of nit:rosopyrrolidine (NPy), a substance suspected of being a carcinogen, In one study focusing on this problem, measurements were made of the amount of NPy (in ppb) recovered after I.he frying of three slices of four commercially avail.able brands of bacon (165). Do the analysis of variance for the data in I.he table and partition the treatment sum of SQu.ares into a complete set of three mutually orthogonal contrasts. Let the first cootrast test Ho: Ji,A = µ,s and the
second, Ho: (µ.A + MJ )/2 = (µ,c + µ,o ) /2. Do all tests althe 0.05 level of significance.
NPy Recovered from Bacon (ppb)
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