Dr. Jones has administered a test to her students. She computed the sample mean = 86 and sample st.dev = 12.
a. Determine the z-score of a student with a raw score of 80?
b. Determine the z-score of a student with a raw score of 98?
c. Determine the raw score for a student with a z-score of -1.5?
d. Determine the raw score for a student with a z-score of +1.0?