June wants to know if one's interest in sports declines as one gets older. She compares several age groups with respect to how much they like to watch sports on television. Which design best describes June's study?

A brain tumor's growth has caused Dick's vision to suffer. Which lobe of the brain is being affected by the tumor's growth?

a. frontal b. occipital c. parietal d. temporal

The population effect size is estimated in the numerator of the t ratio

Indicate whether the statement is true or false