The weight of trucks in motion can be measured as they drive across a plate. The weights of 8 trucks determined by the plate method were compared with the traditional method of static weighing. The weights for both methods (in 1000s of pounds) for each truck are shown below, as well as the related SPSS output.

truck 1 2 3 4 5 6 7 8 plate 26.0 29.9 39.5 25.1 32.8 27.3 30.8 23.6 static 27.9 32.7 42.7 26.8 | 34.3 25.7 33.3 24.8 Paired Samples Statistics method N Mean Std. Deviation Std. Error Mean plate CO 29.38 5.13 1.812 static 31.03 5.97 2.112 Paired Samples Test Paired Differences 95% Confidence Interval of Std. Std. Error the Difference Sig. (2- Mean Deviation Mean Lower Upper df tailed) Pair 1 plate-static -1.65 1.478 0.523 -2.886 -0.414 -3.157 7 016A. Ho: Hd = Ha: Ad B. Ho: H1 7 12 Ha: /1 = /2 C. Ho: Ad = OO Ha: Ud D. Ho: 1 = /2 Ha: H1 - /2 E. Ho: Ud = 0 Ha: Ud