I need help with #2 1) Some studies indicate that Tyrannosaurus weighed about 8,000kg. Let's assume =8,000 and =275kg. a) Calculate Pr{Y>8,500} b) Now assume you have a sample of n=11 dinosaurs. Calculate Pr{Y>8,500}. c) Which probability is lower? Why? 2) Refer to problem 1. Now assume you take a sample of n=7 dinosaurs. a) What is the probability of the sample average being within 300kg of the population mean (8,000kg) ? In other words, you need to figure out Pr{300.