Question: Q6-Q10 are based on the table below. Sample1 Sample2 Sample3 Sample4 Observation1 4.2 4.1 5.2 4.2 Observation2 4.7 4 3.9 4.9 Observation3 4.3 4.8 4.4

Q6-Q10 are based on the table below.

Sample1 Sample2 Sample3 Sample4
Observation1 4.2 4.1 5.2 4.2
Observation2 4.7 4 3.9 4.9
Observation3 4.3 4.8 4.4 4.7

What is the sample size?

What is the average of the sample means, x?

If the process standard deviation is known as 0.12, what is the three-sigma upper control limit for the Mean chart?

What statement can you make based on the Mean chart analysis in Q5?

If the process standard deviation is unknown, what is the lower control limit for the Range chart (rounded to the 2nd decimal point)?

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