eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences April 2010 22 1 79 82 jusps-A 1030 article J. R. Singh (jrsinghstat@gmail.com) 1 R. Sankle (rajshreesankle@gmail.com) 2 School of studies in Mathematics, Vikram University, Ujjain M.P. (INDIA) Testing of Hypothesis <p style="text-align: justify;">The expression for the power of the - chart are derived under measurement error. The power of a control chart under measurement error is examined for the case where both the process average and true variance can change. True and error measurements are additive in nature.<br /> &nbsp;</p> https://www.ultrascientist.org/paper/1030/ Measurement error, Power Function Testing of Hypothesis