Question

Problem 3-2. A Quality Control Decision egin{tabular}{ccc} hline Day & Low & High \ hline 1 & 86 & 215 \ 2 & 82 & 212 \ 3 & 83 & 218 \ 4 & 87 & 214 \ 5 & 85 & 220 \ 6 & 81 & 217 \ 7 & 88 & 223 \ 8 & 83 & 224 \ 9 & 82 & 217 \ 10 & 85 & 222 \ hline end{tabular} 1. Calculate the mean and standard deviation for the above data set. 2. Plot these control data by day (one graph for each level, ( x )-axis = day, ( y )-axis ( = ) concentration). Indicate the mean and the upper and lower control limits (mean ( pm 2 ) standard deviations) with horizontal lines (see Fig. 3.28). 3. You are working in the night shift at a community hospital and are the only person in the laboratory. You are running glucose quality control and obtain the following: Low control value ( =90 ); High control value ( =230 ) Plot these controls on the process control chart (Levey-Jennings) you created above. 4. Are these values within the control limits? 5. What do you observe about these control data? 6 . What might be a potential problem?

          Problem 3-2. A Quality Control Decision
egin{tabular}{ccc}
hline Day & Low & High \
hline 1 & 86 & 215 \
2 & 82 & 212 \
3 & 83 & 218 \
4 & 87 & 214 \
5 & 85 & 220 \
6 & 81 & 217 \
7 & 88 & 223 \
8 & 83 & 224 \
9 & 82 & 217 \
10 & 85 & 222 \
hline
end{tabular}
1. Calculate the mean and standard deviation for the above data set.
2. Plot these control data by day (one graph for each level, ( x )-axis = day, ( y )-axis ( = ) concentration). Indicate the mean and the upper and lower control limits (mean ( pm 2 ) standard deviations) with horizontal lines (see Fig. 3.28).
3. You are working in the night shift at a community hospital and are the only person in the laboratory. You are running glucose quality control and obtain the following:
Low control value ( =90 ); High control value ( =230 )
Plot these controls on the process control chart (Levey-Jennings) you created above.
4. Are these values within the control limits?
5. What do you observe about these control data?

6 . What might be a potential problem?

Problem 3-2. A Quality Control Decision
egintabularccc
hline Day Low High hline 1 86 215 2 82 212 3 83 218 4 87 214 5 85 220 6 81 217 7 88 223 8 83 224 9 82 217 10 85 222 hline
endtabular
1. Calculate the mean and standard deviation for the above data set.
2. Plot these control data by day (one graph for each level, ( x )-axis = day, ( y )-axis ( = ) concentration). Indicate the mean and the upper and lower control limits (mean ( pm 2 ) standard deviations) with horizontal lines (see Fig. 3.28).
3. You are working in the night shift at a community hospital and are the only person in the laboratory. You are running glucose quality control and obtain the following:
Low control value ( =90 ); High control value ( =230 )
Plot these controls on the process control chart (Levey-Jennings) you created above.
4. Are these values within the control limits?
5. What do you observe about these control data?

6 . What might be a potential problem?

Added by Thandolwethu N.

Question

Please give Ace some feedback