The Commute Times (In Minutes) of 20 Randomly Selected Adult $\begin{array} { l l l l l l l l l l } 70 & 72 & 71 & 70 & 69 & 73 & 69 & 68 & 70 & 71 \end{array}$

question 96

Essay

The commute times (in minutes) of 20 randomly selected adult males are listed below. Test the claim that thevariance is less than 6.25. Use α = 0.05. Assume the population is normally distributed. $\begin{array} { l l l l l l l l l l } 70 & 72 & 71 & 70 & 69 & 73 & 69 & 68 & 70 & 71 \end{array}$
$\begin{array} { l l l l l l l l l l } 67 & 71 & 70 & 74 & 69 & 68 & 71 & 71 & 71 & 72 \end{array}$

---

Definitions:

Analysis of Covariance

A statistical method that combines ANOVA and regression to evaluate whether the means of a dependent variable are equal across different groups, while controlling for the effect of one or more covariates.

Interpretive Dancing

A form of modern dance in which the dancer expresses emotions and tells a story through movements and non-literal choreography.

Personality Type

A classification of individuals based on their characteristic patterns of thoughts, feelings, and behaviors.

ANOVA

Stands for Analysis of Variance, a statistical method used to test differences between two or more means.