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ttest: Interpretation of 2-Sample t Test

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Exercise template for assessing the interpretation of a randomly-generated 2-sample t test (including significance and type of alternative). Read More ›

tstat2: 1-Sample t-Test Statistic (Single-Choice)

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Exercise template for computing the t-test statistic (single-choice) from given hypothesized mean and empirical mean and variance. Read More ›

tstat: 1-Sample t-Test Statistic

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Exercise template for computing the t-test statistic (numeric answer) from given hypothesized mean and empirical mean and variance. Read More ›

switzerland: Knowledge Quiz Question about Switzerland

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Exercise template for a multiple-choice knowledge quiz question with basic shuffling of the alternatives. Read More ›

swisscapital: Knowledge Quiz Question about the Swiss Capital

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Exercise template for a single-choice knowledge quiz question with basic shuffling of correct and false alternatives. Read More ›

scatterplot: Interpretation of a Scatterplot

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Exercise template for assessing the interpretation of a randomly-generated scatterplot regarding the joint and marginal distributions. Read More ›

relfreq: Interpretation of Relative Frequency Tables

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Exercise template for assessing the interpretation of a table with relative frequencies where either total, row, or column frequencies are selected randomly. Read More ›

regression: Simple Linear Regression (by Hand)

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Exercise template for computing the prediction from a simple linear prediction by hand, based on randomly-generated marginal means/variances and correlation. Read More ›

lm: Simple Linear Regression (with CSV Data)

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Exercise template for conducting a simple linear regression based on a randomly-generated CSV file. Read More ›

lagrange: Method of Lagrange Multipliers

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Exercise template for minimizing a linear objective function with two arguments subject to a Cobb-Douglas-type constraint. Both the parameters of the functions and the exact question (argument 1 vs. argument 2 vs. function value in optimum) are drawn randomly. Read More ›