A capsule is targeted to contain 50 mg of garlic. A technician selects 25 capsules at random out of a batch of 2,000 and records the mean amount of garlic in the samples. Use the data from the samples to determine if the process is in control. 

Batch

Garlic

1



2



3



4



5



6



Batch

Garlic

7



8



9



10



11



12



Batch

Garlic

13



14



15



16



17



18



Batch

Garlic

19



20



21



22



23



24



 



A. The process is in control.

B. The process is out of control. Ten consecutive points are on one side of the target value line.

C. The process is out of control. Two points are outside the limits.

D. The process is out of control. In batch 7, the value was outside the limits.

E. The process is out of control. In batch 3, the value was outside the limits.


Answer: D

Mathematics

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