The Registrar at a State College Is Interested in Determining $\alpha$

question 68

Multiple Choice

The registrar at a state college is interested in determining whether there is a difference of more than one credit hour between male and female students in the average number of credit hours taken during a term.She selected a random sample of 60 male and 60 female students and observed the following sample information. What do you conclude if z = 1.73 at $\alpha$ = .01?

• A)Reject the null hypothesis
• B)Don't reject the null hypothesis

---

Definitions:

Neurons' Second Messengers

Intracellular signaling molecules released by neurons in response to exposure to neurotransmitters, which help transmit signals from a receptor on the cell surface to target molecules inside the cell.

Lithium

A chemical element used in the treatment of bipolar disorder and other mood disorders by stabilizing mood swings.

Salt

A mineral composed primarily of sodium chloride (NaCl), used in food seasoning and preservation, as well as numerous industrial applications.

Serotonin

A neurotransmitter in the brain that affects mood, emotion, sleep, and appetite regulation, critical in psychological well-being.