Table 15-1
-Refer to Table 15-1.The average range of a process for packaging cereal is 1.1 ounces.If the sample size is 10,find the upper 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 15-1 
-Refer to Table 15-1.The average range of a process for packaging cereal is 1.1 ounces.If the sample size is 10,find the upper 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 upper control chart limit for the range chart can be calculated using the formula UCL = D4 * R, where D4 is the constant factor and R is the average range. From Table 15-1, for a sample size of 10, D4 is 2.282. Thus, UCL = 2.282 * 1.1 = 2.51. Therefore, the best choice is B, 1.955, as it is the closest option to 2.51.

Table 15-1 -Refer to Table 15-1.The Average Range of a Process for a Process