A drug company claims that an allergy medication causes headaches in 5% of those who take it. A medical researcher believes that more than 5% of those who take the drug actually get headaches.

1. Identify the population(s).
   
   • all individuals who take the medication.
   • 5% of those who take the drug actually get headaches.
   • the proportion of those who take the drug who get a headache.
   • more than 5% of those who take the drug actually get headaches.
   
   
   
2. What is the variable being examined for individuals in the population(s)?
   
   • whether or not a person who takes the drug gets a headache.
   • more than 5% of those who take the drug actually get headaches.
   • 5% of those who take the drug actually get headaches.
   • the proportion of those who take the drug who get a headache.
   
   
   
3. Is it categorical or quantitative?
   
   • Categorical
   • Quantitative
   
   
   
4. Identify the parameter(s).
   
   • the mean of those who take the drug who get a headache.
   • the proportion of those who take the drug who get a headache.
   • all individuals who take the medication.
   • whether or not a person who takes the drug gets a headache.
   
   
   
5. What is the claim?
   
   • comparing two population means
   • a population mean
   • a population proportion
   • comparing two population proportions
   
   
   
6. Which hypotheses do we want to test?
   
   • H₀: p ≠ 0.05
     H₀: p = 0.05
   • H₀: p = 0.05
     H₀: p ≠ 0.05
   • H₀: p = 0.05
     H₀: p > 0.05
   • H₀: p = 0.05
     H₀: p < 0.05