X New tab X + //www.myopenmath.com/assess2/?cid=115917&aid=8311923#/skip/2 Suppose that Allegany College of Maryland (ACM) claims that the average textbook at the ACM bookstore costs at least $130. You want to test this claim. You sample 50 books from the ACM bookstore and get the average cost of this sample and standard deviation of this sample. The null and alternative hypothesis in symbols would be: O Ho: p 130 O Ho: M > 130 Ha: p 130 O Ho:p = 130 Ha: p # 130 Ho: ul = 130 Ha: u + 130 Ho: p 2 130 Ha : p