On a Levey-Jennings Chart,the Final Single Data Point Falls Outside $\bar{x} \bar{x} \pm 3 s$

question 9

Multiple Choice

On a Levey-Jennings chart,the final single data point falls outside the +3 SD mark.According to Westgard Rule 1₃s,should the most recent run be accepted?

• A) No, because any data point that does not exactly equal the mean value must be rejected.
• B) No, because the data point falls outside the accepted range of \( \bar{x} \bar{x} \pm 3 s \)
• C) Yes, because runs are rejected only if six or more consecutive data points deviate by greater than +3 SD from the mean.
• D) Yes, because values that fall beyond positive standard deviations from the mean are still within the acceptable range.

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