Suppose the demand on cars has decreased and we observe that cars' prices are not affected. Based on this information, what could you conclude about the price elasticity of supply? (10 pts) Let X1, X2,..., X10 be a random sample of size n = 10 from Poisson Distribution with mean A. Reject the simple null hypothesis Ho: X=0.5 in favor of H: > 0.5, if the observed sum i1i10. 10 (a) (5 pts) Compute the significance level a of the test.