Question

Based on your understanding of the characteristics of the normal distribution, examine the chart below. Process A standard deviation is 9, Process B standard deviation is 1.4, and the mean of both processes is 12. Contribute to our discussion by posting a response to ONE of the questions below. Employing the Normal Distribution 0.5 T 0.45 Process A 0.4 0.35 0.3 0.25 0.2 0.151 0.1 Precess bB 0.05 18 12 10

Answer 1

A. By examining we can say that both the processes fit normal distribution with symmetric curves and mean 12.

B. By examining we can say that process B shows higher variation i.e higher standard deviation compared to process A.

C. According to specification quality limits of 12 +- 3, where allowable deviation is -3 to +3 units from mean, process A meet the specification consistently, as it has lower variation, within 3 standard deviation from mean.

D. The quality is loosening, as it allows more deviation from the specification mean standard. According to specification limits, 12+-6, process B meets the specification quality, as it has higher variation.

E. The student's attendance is supposed to follow a normal distribution with mean attendance 20 days and standard deviation 5.5 days. The attendance percentage is supposedly follow the emperical rule.