Part 1.1. If the coefficient of determination (R2) value is 0.99, it means the 99% of ____ of the observed y-values are explained by the ____ of the predicted y-values, and only 1% remains unexplained." Part 1.2. Two items must be specified to obtain the critical value of t, these are the desired level of significance and the _____. ( answer in 3 words)" Part 1.3. If your test is right-tailed, the level of significance is 0.10, and the degrees of freedom is 99, what is the critical value of t? (answer with 2 decimal plac

Part 1.1. If the coefficient of determination (R2) value is 0.99, it means the 99% of of the observed y-values are explained by the of the predicted y-values, and only 1% remains unexplained." Part 1.2. Two items must be specified to obtain the critical value of t, these are the desired level of significance and the _. ( answer in 3 words)" Part 1.3. If your test is right-tailed, the level of significance is 0.10, and the degrees of freedom is 99, what is the critical value of t? (answer with 2 decimal plac

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section: Chapter Questions

Problem 10T: Olympic Pole Vault The graph in Figure 7 indicates that in recent years the winning Olympic men’s...

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Olympic Pole Vault The graph in Figure 7 indicates that in recent years the winning Olympic men’s pole vault height has fallen below the value predicted by the regression line in Example 2. This might have occurred because when the pole vault was a new event there was much room for improvement in vaulters’ performances, whereas now even the best training can produce only incremental advances. Let’s see whether concentrating on more recent results gives a better predictor of future records. (a) Use the data in Table 2 (page 176) to complete the table of winning pole vault heights shown in the margin. (Note that we are using x=0 to correspond to the year 1972, where this restricted data set begins.) (b) Find the regression line for the data in part ‚(a). (c) Plot the data and the regression line on the same axes. Does the regression line seem to provide a good model for the data? (d) What does the regression line predict as the winning pole vault height for the 2012 Olympics? Compare this predicted value to the actual 2012 winning height of 5.97 m, as described on page 177. Has this new regression line provided a better prediction than the line in Example 2?
To deal with the phenomenon of alpha inflation when doing multiple t-tests, what post-hoc tests such as the Bonferroni Correction do is _____. * Divide the critical value of t by the number of comparisons Multiply the alpha by the number of comparisons Divide the alpha level by the number of comparisons Multiply the critical value of t by the number of comparisons
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