Part 4: 3 pts each 1a. Your lab manager asks you to create the new control range for the new lot of hematology control level 1. The following 20 hemoglobin values are gathered to determine the control limits. Using a calculator or website SD function, calculate and record the mean, the standard deviation, and the 95% confidence interval for this set of values. 4.2 4.6 4.6 4.7 4.7 4.0 4.3 4.9 4.4 4.4 5.0 4.5 4.0 4.1 4.8 4.9 4.2 4.4 4.7 4.7 Mean: 1 SD: 95% Confidence range: 1b. Given the results above, label the following Levey-Jennings Control chart with all of the following: Mean Values for -3SD, -2SD, -1SD, +1SD, +2SD, +3SD Result in mg/dL Control 1 Hemoglobin Levey-Jenning's chart AUGUST 1 2 3 4 5 6 7 8 9 10...... Day

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