A Researcher Is Examining the Relationship Between Taking Oral Prednisone

A researcher is examining the relationship between taking oral prednisone for severe arthritis and blood glucose levels. One of the study subjects is your patient and you see from the report that his blood glucose level has a Z score of 2.2. You know this means:

A) Your patient's average blood glucose level is higher than the average blood glucose level of the study participants.
B) Your patient's blood glucose level is higher than his average level today.
C) Your patient's blood glucose level is statistically significant.
D) Your patient's blood glucose is close to average and thus stable.