GroundRules
10 CFR Appendix A to Subpart B of Part 429: Appendix A to Subpart B of Part 429—Student's t-Distribution Values for Certification Testing
Where this section sits in the code
- Title 10—Energy
- CHAPTER II—DEPARTMENT OF ENERGY
- SUBCHAPTER D—ENERGY CONSERVATION
- PART 429—CERTIFICATION, COMPLIANCE, AND ENFORCEMENT FOR CONSUMER PRODUCTS AND COMMERCIAL AND INDUSTRIAL EQUIPMENT
- Subpart B—Certification
Figure 1—t-Distribution Values for Certification Testing
[One-Sided]
Degrees of freedom (from Appendix A) Confidence Interval
90% 95% 97.5% 99%
1 3.078 6.314 12.71 31.82
2 1.886 2.920 4.303 6.965
3 1.638 2.353 3.182 4.541
4 1.533 2.132 2.776 3.747
5 1.476 2.015 2.571 3.365
6 1.440 1.943 2.447 3.143
7 1.415 1.895 2.365 2.998
8 1.397 1.860 2.306 2.896
9 1.383 1.833 2.262 2.821
10 1.372 1.812 2.228 2.764
11 1.363 1.796 2.201 2.718
12 1.356 1.782 2.179 2.681
13 1.350 1.771 2.160 2.650
14 1.345 1.761 2.145 2.624
15 1.341 1.753 2.131 2.602
16 1.337 1.746 2.120 2.583
17 1.333 1.740 2.110 2.567
18 1.330 1.734 2.101 2.552
19 1.328 1.729 2.093 2.539
20 1.325 1.725 2.086 2.528
Collected 2026-08-27T02:24:09Z. Source file · JSON