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The test statistic is a one-number summary of all the information in the sample regarding the correctness of the alternative hypothesis. Different kinds of hypothesis tests (e.g., about means, proportions, differences of means, differences of proportions, etc.) require different test statistics.
When originally setting the rates they believed that the average claim amount was $1,800. They are concerned that the true mean is actually higher than this, because they could potentially lose a lot of money. They randomly select 40 claims, and calculate a sample mean of $1,950.
Using the same data, use Bayes theorem to calculate the probability the percentage of yellow is 10% and 20%. P(10%yellow|data) = P(data|10%yellow) × P(10% ...
Abstract. This paper proposes a single form for statistical models that accommodates a broad range of models, from ordinary least squares to ...
