Select 10 additional random samples of size 5 from the population of 20 students given in Example 8.1, and calculate the mean amount spent on books for each of the 10 samples. Are the x? values consistent with the results of the sampling experiment summarized in Figure 8.1?

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Density 0.018 0.016 0.014 0.012 0.010 0.008 0.006 0.004 0.002 310 330 350 370 390 410 430 450 Sample mean