Figure 24.7 (page 597) gives CrunchIt!output for the regression of blood alcohol content
Chapter 0, Problem 24.46(choose chapter or problem)
Figure 24.7 (page 597) gives CrunchIt!output for the regression of blood alcohol content (BAC) on number of beersconsumed. The t test for the hypothesis that the population regression line hasslope = 0 has P < 0.0001. The data show a positive linear relationship betweenBAC and beers. We might expect the intercept of the population regression lineto be 0, because no beers (x = 0) should produce no alcohol in the blood(y = 0). To testH0: = 0Ha: = 0we use a t statistic formed by dividing the least-squares intercept a by its standarderror SEa . Locate this statistic in the output of Figure 24.7 and verify that it is infact a divided by its standard error. What is the P-value? Do the data suggest thatthe intercept is not 0?
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