IDZ 19.1 – Option 8. Solutions Ryabushko A.P.

As a result of the experiment, data was obtained that was recorded in the form of a statistical series. To complete the assigned tasks, you must complete the following steps:

a) It is necessary to rewrite the values ​​of the experimental results in the form of a variation series; b) Find the range of variation and divide it into 9 intervals; c) Construct a frequency polygon, a histogram of relative frequencies and a graph of the empirical distribution function; d) Find the numerical characteristics of the sample x and DB; e) To test the null hypothesis H0 that the population from which the sample was drawn has a normal distribution, it is necessary to use the Pearson test at a significance level of α = 0.025; f) Find confidence intervals for the mathematical expectation and standard deviation with a reliability of γ = 0.9.

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The task requires the following steps:

a) write down the values ​​of the experiment results in the form of a variation series; b) find the range of variation and divide it into 9 intervals; c) construct a frequency polygon, a histogram of relative frequencies and a graph of the empirical distribution function; d) find the numerical characteristics of the sample x, DB; e) accepting the null hypothesis H0: the population from which the sample was drawn has a normal distribution, test it using the Pearson test at a significance level of α = 0.025; f) find confidence intervals for the mathematical expectation and standard deviation with a reliability of γ = 0.9.

Decisions Ryabushko A.P. provide a detailed description of each stage of solving the problem, including formulas and calculations. In addition, the material is formatted in Microsoft Word 2003 and contains high-quality graphics for a complete understanding of the data processing process.

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