The regression equation is ? = 29.29 – 0.94X, the sample size is 28, and the standard error of the slope is 0.22. What is the critical value to test whether the slope is different from zero at the 0.01 significance level? Multiple Choice z = ±1.648 z = +1.398 t = +2.427 t = ±2.779
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Since the sample size is relatively small (n = 28), we will use the t-distribution to find the critical value for testing the slope of the regression line. Show more…
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