Tools
Intervals & Tests
Hypothesis Test Of Sample Mean Example
Hypothesis Test Of Two Sample Variances Example
Hypothesis Test Of A Standard Deviation Compared To A Standard Value Example
Distributions
Area Under the Standard Normal Curve
Non-Normal Distributions in the Real World
Rayleigh Distribution for True Position
g = # plotted groups ; m = repeat readings taken
g /m |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
1 |
1.41 |
1.91 |
2.24 |
2.48 |
2.67 |
2.83 |
2.96 |
3.08 |
3.18 |
3.27 |
3.35 |
3.42 |
3.49 |
3.55 |
2 |
1.28 |
1.81 |
2.15 |
2.4 |
2.6 |
2.77 |
2.91 |
3.02 |
3.13 |
3.22 |
3.30 |
3.38 |
3.45 |
3.51 |
3 |
1.23 |
1.77 |
2.12 |
2.38 |
2.58 |
2.75 |
2.89 |
3.01 |
3.11 |
3.21 |
3.29 |
3.37 |
3.43 |
3.50 |
4 |
1.21 |
1.75 |
2.11 |
2.37 |
2.57 |
2.74 |
2.88 |
3.00 |
3.10 |
3.20 |
3.28 |
3.36 |
3.43 |
3.49 |
5 |
1.19 |
1.74 |
2.1 |
2.36 |
2.56 |
2.73 |
2.87 |
2.99 |
43.10 |
3.19 |
3.28 |
3.35 |
3.42 |
3.49 |
6 |
1.18 |
1.73 |
2.09 |
2.35 |
2.56 |
2.73 |
2.87 |
2.99 |
3.10 |
3.19 |
3.27 |
3.35 |
3.42 |
3.49 |
7 |
1.17 |
1.73 |
2.09 |
2.35 |
2.55 |
2.72 |
2.87 |
2.99 |
3.10 |
3.19 |
3.27 |
3.35 |
3.42 |
3.48 |
8 |
1.17 |
1.72 |
2.08 |
2.35 |
2.55 |
2.72 |
2.87 |
2.98 |
3.09 |
3.19 |
3.27 |
3.35 |
3.42 |
3.48 |
9 |
1.16 |
1.72 |
2.08 |
2.34 |
2.55 |
2.72 |
2.86 |
2.98 |
3.09 |
3.18 |
3.27 |
3.35 |
3.42 |
3.48 |
10 |
1.16 |
1.72 |
2.08 |
2.34 |
2.55 |
2.72 |
2.86 |
2.98 |
3.09 |
3.18 |
3.27 |
3.34 |
3.42 |
3.48 |
11 |
1.16 |
1.71 |
2.08 |
2.34 |
2.55 |
2.72 |
2.86 |
2.98 |
3.09 |
3.18 |
3.27 |
3.34 |
3.41 |
3.48 |
12 |
1.15 |
1.71 |
2.07 |
2.34 |
2.55 |
2.72 |
2.85 |
2.98 |
3.09 |
3.18 |
3.27 |
3.34 |
3.41 |
3.48 |
13 |
1.15 |
1.71 |
2.07 |
2.34 |
2.55 |
2.71 |
2.85 |
2.98 |
3.09 |
3.18 |
3.27 |
3.34 |
3.41 |
3.48 |
14 |
1.15 |
1.71 |
2.07 |
2.34 |
2.54 |
2.71 |
2.85 |
2.98 |
3.08 |
3.18 |
3.27 |
3.34 |
3.41 |
3.48 |
15 |
1.15 |
1.71 |
2.07 |
2.34 |
2.54 |
2.71 |
2.85 |
2.98 |
3.08 |
3.18 |
3.26 |
3.34 |
3.41 |
3.48 |
> 15 |
1.128 |
1.693 |
2.059 |
2.326 |
2.534 |
2.704 |
2.847 |
2.970 |
3.078 |
3.173 |
3.258 |
3.336 |
3.407 |
3.472 |
Learn more about the Statistical Inference tools for understanding statistics in Six Sigma Demystified (2011, McGraw-Hill) by Paul Keller, in his online Intro. to Statistics short course (only $89) or his online Black Belt certification training course ($875).