TY - JOUR ID - Wojdyła2021 LB - Wojdyła2021 AU - Wojdyła, Jakub TI - Nonparametric bootstrap confidence bands for unfolding sphere size distributions ST - Nonparametric bootstrap confidence bands for unfolding sphere size distributions JO - Opuscula Math. JA - Opuscula Math. JF - Opuscula Mathematica PY - 2021 VL - 41 IS - 5 SP - 725 EP - 740 DO - https://doi.org/10.7494/OpMath.2021.41.5.725 UR - https://doi.org/10.7494/OpMath.2021.41.5.725 AB - The stereological inverse problem of unfolding the distribution of spheres radii from measured planar sections radii, known as the Wicksell's corpuscle problem, is considered. The construction of uniform confidence bands based on the smoothed bootstrap in the Wicksell's problem is presented. Theoretical results on the consistency of the proposed bootstrap procedure are given, where the consistency of the bands means that the coverage probability converges to the nominal level. The finite-sample performance of the proposed method is studied via Monte Carlo simulations and compared with the asymptotic (non-bootstrap) solution described in literature. KW - bootstrap KW - confidence bands KW - inverse problem KW - nonparametric density estimation KW - Wicksell's problem SN - 1232-9274 ER -