Following are the data from Exercise 16.51 on bacteria counts, in millions, for different cases from each of five strains of cultured Staphylococcus aureus.

a. Use a 95% family confidence level.
b. Without doing any further work or referring to Exercise 16.51, decide at the 5% significance level whether the data provide sufficient evidence to conclude that a difference exists in mean bacteria counts among the five strains of Staphylococcus aureus. Explain your reasoning.
Perform a Tukey multiple comparison at the specified family confidence level.

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Strain A Strain B Strain C Strain D Strain E 10 47 50 52 26 14 18 17 29 20 27 32 37 45 12 43 28 59 31 30 16