____ contain instructions for making proteins

What is an assumption of the chi-square test?

a. Normal distribution b. N greater than 100 c. Expected cell frequencies greater than 5 d. All of the above

______ can lower stress and improve immune system functioning

a. Neither relaxation training nor breathing exercises b. Relaxation training, but not breathing exercises, c. Breathing exercises, but not relaxation training, d. Both relaxation training and breathing exercises