Find the single-sample t ratio

Suppose you observe a baby focus his eyes on a rattle being held in front of him, and then he moves his arm and hand out and grasps the rattle, taking it from the person holding it

This series of actions is a good example of the visually guided reach. Indicate whether the statement is true or false

Suppose you selected a group of highly aggressive fifth grade boys and girls and asked them who the "coolest" person in their class is. Generalizing from research cited in the text, you would expect them to choose:

a. Sam, who is very attractive physically b. Matthew, who is very smart c. Les, who is very aggressive d. Rob, who is very tall