Identify the null hypothesis Ho and the alternative hypothesis H Use for a claim about a mean p for a claim about a proportion and o for a claim about variation A researcher claims that the amounts of acetaminophen in a certain brand of cold tablets have a standard deviation different from the o 3 3 mg claimed by the manufacturer O Ho a 3 3 mg H 0 3 3 mg O Ho o 3 3 mg H 0 3 3 mg O Ho o 3 3 mg H 0 3 3mg O Ho a 3 3 mg H 0 3 3 mg