Linear statistical model; uncertainty; design matrix; covariance matrix
The aim of the paper is to determine an influence of uncertainties in design and covariance matrices on estimators in linear regression model.
 Kubáček, L., Kubáčková, L.: Statistics and Metrology. Vyd. Univ. Palackého, Olomouc, 2000 (in Czech).
 Rao, C. R.: Linear Statistical Inference and Its Applications
. J. Wiley, New York–London–Sydney, 1973 sec. ed. MR 0346957
| Zbl 0256.62002
 Rao, C. R., Mitra, S. K.: Generalized Inverse of Matrices and its Applications
. J. Wiley, New York–London–Sydney–Toronto, 1971. MR 0338013
| Zbl 0236.15005