1. What proportion of adults get between seven to nine hours of sleep each night? A medical researcher surveys a random sample of 1000 adults and finds that 597 of these adults report getting between seven to nine hours of sleep each night. Use this information to construct a 90% confidence interval. As you engage in your calculations, try not to do a lot of rounding until you reach the end of your calculations, and choose the answer below that is closest to what you calculate. A. 0.581 to 0.613 B. 0.556 to 0.638 C. 0.572 to 0.622 D. 0.596 to 0.598 E. 0.564 to 0.630