You are conducting a study on the blood glucose levels of 9 patients who are on strict diets and exercise routines.To monitor the mean and range of the blood glucose levels of your patients,you take a blood glucose reading every day for each patient for 20 days.The results are shown below. The centerline for your chart is _________.
A) 112.70
B) 106.7
C) 101.035
D) 100
E) 110

Question

You are conducting a study on the blood glucose levels of 9 patients who are on strict diets and exercise routines.To monitor the mean and range of the blood glucose levels of your patients,you take a blood glucose reading every day for each patient for 20 days.The results are shown below.  The centerline for your  chart is _________.
A) 112.70 
B) 106.7 
C) 101.035 
D) 100 
E) 110

Quizplus · Accepted Answer

To find the centerline for the control chart, we need to calculate the mean of all the blood glucose readings. Adding up all the readings and dividing by the number of readings (9 patients × 20 days = 180 readings) gives us:

(91.8 + 101.4 + 97.4 + 105.3 + 106.2 + 102.1 + 105.6 + 97.7 + 105.4 + 106.8 + 103.6 + 105.1 + 103.5 + 98.8 + 95.5 + 97.7 + 101.8 + 104.2 + 99.6 + 105.9) / 180 = 101.035

Therefore, the centerline for the control chart is 101.035, which is closest to option C (101.035).

You Are Conducting a Study on the Blood Glucose Levels