5715. σ=1.3, δ=0.6, γ=0.986 Find the minimum sample size at which, with a reliability of 0.986, the accuracy of estimating the mathematical expectation a by the sample mean will be equal to δ=0.6, if the standard deviation 1 is known, 3 normally distributed population.

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)