Table 16-1
-Refer to Table 16-1. The average range of a process for packaging cereal is 1.1 ounces. If the sample size is 10, find the lower control chart limit for the range chart.
A) 0.245
B) 1.955
C) 1.777
D) 0.223
E) None of the above

Question

Table 16-1 
-Refer to Table 16-1. The average range of a process for packaging cereal is 1.1 ounces. If the sample size is 10, find the lower control chart limit for the range chart.
A) 0.245 
B) 1.955 
C) 1.777 
D) 0.223 
E) None of the above

Quizplus · Accepted Answer

The lower control limit (LCL) for a range chart is calculated using the formula LCL = D3 * R̄. For a sample size of 10, D3 is 0.223. Therefore, LCL = 0.223 * 1.1 = 0.2453, which rounds to 0.245.

Table 16-1 -Refer to Table 16-1. the Average Range of a Process