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People with a certain condition have an average of 1.4 headaches per week. A medical researcher believes that the drug they have created will decrease

People with a certain condition have an average of 1.4 headaches per week. A medical researcher believes that the drug they have created will decrease the number of headaches for people with that condition.

  1. Identify the population(s).
  • people who take the drug get less than 1.4 headaches per week on average.
  • the average number of headaches the person gets in a week.
  • people who take the drug get 1.4 headaches per week on average.
  • all individuals who take the medication.

2 What is the variable being examined for individuals in the population(s)?

  • the number of headaches the person gets in a week
  • people who take the drug get less than 1.4 headaches per week on average.
  • the average number of headaches the person gets in a week.
  • people who take the drug get an average of 1.4 headaches per week

3 Is it categorical or quantitative?

  • Quantitative
  • Categorical

4 Identify the parameter(s).

  • all individuals who take the medication.
  • the average (mean) number of headaches that people get per week when using the drug.
  • whether or not a person who takes the drug gets a headache.
  • the proportion of those who take the drug who get a headache.

5 Which hypotheses do we want to test?

  • H0:< 1.4
  • HA:= 1.4

  • H0:= 1.4
  • HA:> 1.4

  • H0:= 1.4
  • HA:< 1.4

  • H0: = 1.4
  • HA:< 1.4

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