Chapter 13: Q. 8 (page 547)
In this problem, consider an F-curve with .
Identify the degrees of freedom for the numerator.
Short Answer
The degree of freedom for the numerator is .
Chapter 13: Q. 8 (page 547)
In this problem, consider an F-curve with .
Identify the degrees of freedom for the numerator.
The degree of freedom for the numerator is .
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In each part, specify what type of analysis you might use.
a. To study the effect of one factor on the mean of a response variable
b. To study the effect of two factors on the mean of a response variable
Consider a curve with
Find the value with area to its right.
Staph Infections. In the article "Using EDE, ANOVA and Regression to Optimize Some Microbiology Data" (Journal of Statistics Education, Vol. , 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 hours at . The following table reports bacteria counts, in millions, for different cases from each of the five strains.
At the 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? (Note: , ,.)
For a one-way ANOVA test, suppose that, in reality, the null hypothesis is false. Does that mean that no two of the populations have the same mean? If not, what does it mean?
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