Hypothesis Tests - Normal Distribution also known as Z-tests скачать в хорошем качестве

Hypothesis Tests - Normal Distribution also known as Z-tests

http://www.themathscentre.com Cambridge AS Levels Probability & Statistics 2 (Paper 7) Hypothesis Tests - Normal Distribution also known as Z-tests understand the nature of a hypothesis test, the difference between one-tail and two-tail tests, and the terms null hypothesis, alternative hypothesis, significance level, rejection region (or critical region), acceptance region and test statistic; formulate hypotheses and carry out a hypothesis test in the context of a single observation from a population which has a binomial or Poisson distribution, using either direct evaluation of probabilities or a normal approximation, as appropriate; formulate hypotheses and carry out a hypothesis test concerning the population mean in cases where the population is normally distributed with known variance or where a large sample is used; understand the terms Type I error and Type II error in relation to hypothesis tests; calculate the probabilities of making Type I and Type II errors in specific situations involving tests based on a normal distribution or direct evaluation of binomial or Poisson probabilities. more : http://www.themathscentre.com/cambrid...