IDZ Ryabushko 19.1 Option 7
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Section: Chapter 19. Elements of Mathematical Statistics
Topic: Sample, histogram, empirical distribution function, hypothesis testing
Description: Construction of a variation series, histogram of relative frequencies, empirical distribution function; calculation of sample mean, variance, standard deviation; testing the hypothesis of normal distribution using Pearson´s criterion; construction of confidence intervals.
Tasks:
1. As a result of the experiment, data written as a statistical series are obtained. It is required: a) to write the experimental results as a variation series; b) to find the range of variation and divide it into a given number of intervals; c) to construct a frequency polygon, a histogram of relative frequencies and a graph of the empirical distribution function; d) to find the numerical characteristics of the sample x̄, DВ; e) taking the null hypothesis H₀ that the population from which the sample is drawn is normally distributed, test it using Pearson´s criterion at a given significance level α; f) to find confidence intervals for the mathematical expectation and standard deviation at a given confidence level γ.
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- Updated on the site 30.06.2024
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IDZ Ryabushko 19.1 Option 7
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| 150 $ | the discount is 30% |
| 100 $ | the discount is 25% |
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| 40 $ | the discount is 15% |
| 20 $ | the discount is 10% |
| 10 $ | the discount is 7% |
| 5 $ | the discount is 3% |
Amount of purchases from the seller: $
Your discount: %
Cumulative discount
| 200 $ | the discount is 40% |
| 150 $ | the discount is 30% |
| 100 $ | the discount is 25% |
| 70 $ | the discount is 20% |
| 40 $ | the discount is 15% |
| 20 $ | the discount is 10% |
| 10 $ | the discount is 7% |
| 5 $ | the discount is 3% |
Amount of purchases from the seller: $
Your discount: %
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