Table 16-1
-Refer to Table 16-1. Bags of tea are sampled to ensure proper weight. The overall average for the samples is 8 ounces. Each sample contains 10 bags. The average range is 0.1 ounces. What is the lower limit of the sample averages chart?
A) 7.9692
B) 8.0308
C) 7.9076
D) 8.0924
E) None of the above

Question

Table 16-1 
-Refer to Table 16-1. Bags of tea are sampled to ensure proper weight. The overall average for the samples is 8 ounces. Each sample contains 10 bags. The average range is 0.1 ounces. What is the lower limit of the sample averages chart?
A) 7.9692 
B) 8.0308 
C) 7.9076 
D) 8.0924 
E) None of the above

Quizplus · Accepted Answer

The lower control limit (LCL) for the sample averages chart is calculated using the formula: LCL = X̄ - A2 * R̄. Here, X̄ = 8, R̄ = 0.1, and for a sample size of 10, A2 = 0.308. Thus, LCL = 8 - (0.308 * 0.1) = 7.9692.

Table 16-1 -Refer to Table 16-1. Bags of Tea Are Sampled to Are