5. State the appropriate 0 and in symbol form for the following statements. a) Optum health claims in a recent study that the average monthly premium paid for individual health coverage was $ 210. Suppose you believe that the average monthly premium is higher than stated by Optum health. 0: : b) The percentage of the general population who own a smart phone is 42%. A consumer agency believes that the percentage is lower for low-income college students. 0: : c) More than half of all college graduates own a smartphone. 0: :