Mathematics

12 June, 00:30

A simple linear regression was used to predict the score y on a final exam from the score x on the first exam. The slope of the least squares regression line is 0.75. The standard error of the slope is 0.11 and then sample size is 200. To test the null hypothesis that the slop is zero versus the one-sided alternative that the slope is positive, we use the statistic t =

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