Math Solutions

(All Steps) A large Canadian survey asked 200 high school children, "how many days last week did you do an intense physical activity (exercise)?" The results

Question: A large Canadian survey asked 200 high school children, "how many days last week did you do an intense physical activity (exercise)?" The results are found below.

Number of days 0<=day< 2 2<=day<4 4<=day<6 6<=day<=7
Girls 24 40 26 10
Boys 17 31 31 21
  1. Describe the variables and samples in the experiment.
  2. Perform a hypothesis test to address the question, whether gender and number of days of physical activity are independent? (
  3. Perform a hypothesis test to address the question, the proportion of students who exercise no less than 4 days (that is, 4 or 5 or 6 or 7 days) is significantly higher in boys than girls. (

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