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𝑁𝑁
𝑛𝑛
Equation 69
Page 32 of 128
September 15th, 2025
NCP-RP-2025-005 Rev NC
and
𝑡𝑡𝑐𝑐 = 𝑡𝑡. 𝐼𝐼𝐼𝐼𝐼𝐼(α, 𝑁𝑁)
Equation 70
Where t.INV is the inverse of the cumulative Student’s t-distribution, N=sample size of the
qualification dataset, n=5 and α =0.01.
Case study
Consider a simple example using some fictitious data for illustration purposes,…
https://www.wichita.edu/industry_and_defense/NIAR/Documents/NCAMP/Victrex_NCP-RP-2025-005_LMPAEK_AS7_UDT_192_gsm_Rev-09.16.25_FINAL_SAR.pdf