Table 5 Open in new tab Comparison of...

Experimental Design: Day × Run × Replicate	False Acceptance Rate for Between-Day Imprecision, %			False Acceptance Rate for Between-Run Imprecision, %			False Acceptance Rate for Repeatability, %
20 × 2 × 2	6.8	2.3	0.1	5.8	1.7	0.0	1.2
20 × 1 × 4	4.3	0.9	0.0	—	—	—	0.5
10 × 4 × 2	9.2	4.1	0.3	4.1	0.8	0.0	1.2
10 × 2 × 4	11.9	6.6	1.1	8.2	3.4	0.2	0.5
10 × 1 × 8	7.5	2.8	0.1	—	—	—	0.3
5 × 4 × 4	14.1	8.8	2.2	5.8	1.7	0.0	0.5
5 × 2 × 8	17.8	12.5	4.6	11.9	6.6	1.1	0.3
5 × 1 × 16	11.9	6.6	1.1	—	—	—	0.3

Experimental Design: Day × Run × Replicate

False Acceptance Rate for Between-Day Imprecision, %

False Acceptance Rate for Between-Run Imprecision, %

False Acceptance Rate for Repeatability, %

Actual Factor of Increase From Claimed Value

1.1

1.2

1.5

1.1

1.2

1.5

1.1

1.2

1.5

20 × 2 × 2

6.8

2.3

0.1

5.8

1.7

0.0

1.2

0.0

20 × 1 × 4

4.3

0.9

0.0

—

0.5

0.0

10 × 4 × 2

9.2

4.1

0.3

4.1

0.8

0.0

1.2

0.0

10 × 2 × 4

11.9

6.6

1.1

8.2

3.4

0.2

0.5

0.0

10 × 1 × 8

7.5

2.8

0.1

—

0.3

0.0

5 × 4 × 4

14.1

8.8

2.2

5.8

1.7

0.0

0.5

0.0

5 × 2 × 8

17.8

12.5

4.6

11.9

6.6

1.1

0.3

0.0

5 × 1 × 16

11.9

6.6

1.1

—

0.3

0.0

Experimental Design: Day × Run × Replicate	False Acceptance Rate for Between-Day Imprecision, %			False Acceptance Rate for Between-Run Imprecision, %			False Acceptance Rate for Repeatability, %
20 × 2 × 2	6.8	2.3	0.1	5.8	1.7	0.0	1.2
20 × 1 × 4	4.3	0.9	0.0	—	—	—	0.5
10 × 4 × 2	9.2	4.1	0.3	4.1	0.8	0.0	1.2
10 × 2 × 4	11.9	6.6	1.1	8.2	3.4	0.2	0.5
10 × 1 × 8	7.5	2.8	0.1	—	—	—	0.3
5 × 4 × 4	14.1	8.8	2.2	5.8	1.7	0.0	0.5
5 × 2 × 8	17.8	12.5	4.6	11.9	6.6	1.1	0.3
5 × 1 × 16	11.9	6.6	1.1	—	—	—	0.3

Table 5

Open in new tab

Comparison of Different Experimental Designs With an Equal Number of Total Measurements With Three Samples^a

Experimental Design: Day × Run × Replicate	False Acceptance Rate for Between-Day Imprecision, %			False Acceptance Rate for Between-Run Imprecision, %			False Acceptance Rate for Repeatability, %
	Actual Factor of Increase From Claimed Value
	1.1	1.2	1.5	1.1	1.2	1.5	1.1	1.2	1.5
20 × 2 × 2	6.8	2.3	0.1	5.8	1.7	0.0	1.2	0.0	0.0
20 × 1 × 4	4.3	0.9	0.0	—	—	—	0.5	0.0	0.0
10 × 4 × 2	9.2	4.1	0.3	4.1	0.8	0.0	1.2	0.0	0.0
10 × 2 × 4	11.9	6.6	1.1	8.2	3.4	0.2	0.5	0.0	0.0
10 × 1 × 8	7.5	2.8	0.1	—	—	—	0.3	0.0	0.0
5 × 4 × 4	14.1	8.8	2.2	5.8	1.7	0.0	0.5	0.0	0.0
5 × 2 × 8	17.8	12.5	4.6	11.9	6.6	1.1	0.3	0.0	0.0
5 × 1 × 16	11.9	6.6	1.1	—	—	—	0.3	0.0	0.0

Experimental Design: Day × Run × Replicate	False Acceptance Rate for Between-Day Imprecision, %			False Acceptance Rate for Between-Run Imprecision, %			False Acceptance Rate for Repeatability, %
	Actual Factor of Increase From Claimed Value
	1.1	1.2	1.5	1.1	1.2	1.5	1.1	1.2	1.5
20 × 2 × 2	6.8	2.3	0.1	5.8	1.7	0.0	1.2	0.0	0.0
20 × 1 × 4	4.3	0.9	0.0	—	—	—	0.5	0.0	0.0
10 × 4 × 2	9.2	4.1	0.3	4.1	0.8	0.0	1.2	0.0	0.0
10 × 2 × 4	11.9	6.6	1.1	8.2	3.4	0.2	0.5	0.0	0.0
10 × 1 × 8	7.5	2.8	0.1	—	—	—	0.3	0.0	0.0
5 × 4 × 4	14.1	8.8	2.2	5.8	1.7	0.0	0.5	0.0	0.0
5 × 2 × 8	17.8	12.5	4.6	11.9	6.6	1.1	0.3	0.0	0.0
5 × 1 × 16	11.9	6.6	1.1	—	—	—	0.3	0.0	0.0

^aThe claimed ratios of σ _day/σ _rep and σ _run/σ _rep are set to 1.5 and 1.2, respectively.

This Feature Is Available To Subscribers Only