According to Census data, in 1950 the population of the US amounted to 151.3 millions persons, and 13.4% of them were living in the West. In 2000, the population was 281.4 million, and 22.5% of them were living in the West. Is the difference in percentages practically significant? Statistically significant? Or do these questions make sense? Explain briefly please Solution population in west in 1950 - 20.72 million population in west in 2000- 63.315 million this is both practically & statistically signiicant becoz this shows the change in population in 50 years in west . this change can be due to more development in west or other reasons . practically it is significant becoz population increases in the areas where more development is there & statically it shows the % change in the population in 50 years..