In the article ''Using EDE, ANOVA and Regression to Optimize Some Microbiology Data'' (Journalof Statistics Education, Vol. 12, No. 2, online), N. Binnie analyzed bacteria-culture data collected by G. Cooper at the Auckland University of Technology. Five strains of cultured Staphylococcus aureus—bacteria that cause staph infections— were observed for 24 hours at 27◦C. The following table reports bacteria counts, in millions, for different cases from each of the five strains.
At the 5% significance level, do the data provide sufficient evidence to conclude that a difference exists in mean bacteria counts among the five strains of Staphylococcus aureus? T1 = 104, T2 = 129, T3 = 185, T4 = 98, T5 = 194, and _x2i = 25,424.
Apply Procedure to perform a one-way ANOVA test by using either the critical-value approach or the P-value approach.

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