Researchers want to know if undergraduate students drink more alcohol than the general population. Previous studies indicate that 70% of Americans drink alcohol at least once a week. The researchers survey 1200 students at the University of Oregon and find that 89% of undergraduates drink alcohol at least once a week. Calculate x² to compare the proportion of undergraduates that drink alcohol regularly to the general population.

For each step in your calculations, round your answers to the nearest hundredth before entering into the next step. Round your final answer to the nearest hundredth.