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T Estimate of a Mean

T Estimate of a Mean
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2019-09-15 19:59
FunctionCalculusProbability & StatisticsGeometric Construction
In collections Probability distributions with GeoGebra
This example demonstrates the application of T-test in estimating a population mean, visualizing the calculation of confidence intervals. Core math concepts include Confidence Interval, Conditional Probability, Random Variables, T-Distribution, and Integral. It is constructed using GeoGebra commands like If, Textfield, SelectedElement, TDistribution, InverseTDistribution, Integral, Segment. Suitable for high school and above students learning statistical inference methods.

GeoGebra Commands & Parameters

  1. If(lg(sx) > 0, 1, ceil((-lg(sx)))) → pyor
  2. Textfield(σ) → tekstikenttä1
  3. Textfield(ka) → tekstikenttä2
  4. Textfield(n) → tekstikenttä3
  5. SelectedElement(p) → val
  6. TDistribution(n - 1, x, false) → f
  7. InverseTDistribution(n - 1, val + α / 2) → a
  8. Integral(f, (-a), a) → b
  9. Segment(B, A) → i