Question

Suppose a group is interested in determining whether teenagers obtain their drivers licenses at approximately the same average age across the country. Suppose that the following data are randomly collected from nine teenagers in each region of the country (Click here to download the RDS file). The numbers represent the age at which teenagers obtained their drivers licenses. a. What is the degrees of freedom of the within group? b. What is the critical value, $CV_F$ at $\alpha = 0.1$ level of significance? c. What is the grand mean, $\bar{X}_{GM}$? d. What is the sum of squares for the between groups? e. What is the total degrees of freedom? f. What is the degrees of freedom of the between group?

          Suppose a group is interested in determining whether teenagers obtain their drivers licenses at approximately the same average age across the country. Suppose that the following data are randomly collected from nine teenagers in each region of the country (Click here to download the RDS file). The numbers represent the age at which teenagers obtained their drivers licenses.
a. What is the degrees of freedom of the within group?
b. What is the critical value, $CV_F$ at $\alpha = 0.1$ level of significance?
c. What is the grand mean, $\bar{X}_{GM}$?
d. What is the sum of squares for the between groups?
e. What is the total degrees of freedom?
f. What is the degrees of freedom of the between group?

Suppose a group is interested in determining whether teenagers obtain their drivers licenses at approximately the same average age across the country. Suppose that the following data are randomly collected from nine teenagers in each region of the country (Click here to download the RDS file). The numbers represent the age at which teenagers obtained their drivers licenses.
a. What is the degrees of freedom of the within group?
b. What is the critical value, CVF at α = 0.1 level of significance?
c. What is the grand mean, X̅GM?
d. What is the sum of squares for the between groups?
e. What is the total degrees of freedom?
f. What is the degrees of freedom of the between group?

Added by Derrick S.

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