Choose the appropriate hypothesis test for each of the following situations. Choose from: t-test, matched-pair t -
test, 2 -sample t-test, 1 proportion z-test, and 2-proportion z-test
a. A powder diet is tested on 49 people and a liquid diet is tested on 36 different people. The population
standard deviations are 2 pounds and 3 pounds, respectively. Of interest is whether the liquid diet yields a
higher average weight loss than the powder diet.
b. A football league reported that the average number of touchdowns per game was 5. A study is done to
determine if the average number of touchdowns has decreased.
c. According to a YWCA Rape Crisis Center newsletter, 75% of rape victims know their attackers. A study is
done to verify this.
d. A recent drug survey showed an increase in use of drugs and alcohol among local high school students as
compared to the national percent. Suppose that a survey of 100 local youths and 100 national youths is
conducted to see if the percentage of drug and alcohol use is higher locally than nationally.
e. A new SAT study course is tested on 12 individuals. Pre-course and post-course scores are recorded. Of
interest is the average increase in SAT scores.Choose the appropriate hypothesis test for each of the following situations. Choose from: t-test, matched-pair t-test, 2-sample t-test, 1 proportion z-test, and 2-proportion z-test
A powder diet is tested on 49 people and a liquid diet is tested on 36 different people. The population standard deviations are 2 pounds and 3 pounds, respectively. Of interest is whether the liquid diet yields a higher average weight loss than the powder diet.
A football league reported that the average number of touchdowns per game was 5. A study is done to determine if the average number of touchdowns has decreased.
According to a YWCA Rape Crisis Center newsletter, 75% of rape victims know their attackers. A study is done to verify this.
A recent drug survey showed an increase in use of drugs and alcohol among local high school students as compared to the national percent. Suppose that a survey of 100 local youths and 100 national youths is conducted to see if the percentage of drug and alcohol use is higher locally than nationally.
A new SAT study course is tested on 12 individuals. Pre-course and post-course scores are recorded. Of interest is the average increase in SAT scores.
test, 2-sample t-test, 1 proportion z-test, and 2-proportion z-test
a.A powder diet is tested on 49 people and a liguid diet is tested on 36 different people.The population
standard deviations are 2 pounds and 3 pounds,respectively.Of interest is whether the liguid diet yields a
higher average weight loss than the powder diet.
b.A football league reported that the average number of touchdowns per game was 5.A study is done to
determine if the average number of touchdowns has decreased.
c. According to a YWCA Rape Crisis Center newsletter,75% of rape victims know their attackers. A study is
done to verify this. d. A recent drug survey showed an increase in use of drugs and alcohol among local high school students as
compared to the national percent. Suppose that a survey of 100 local youths and 100 national youths is
conducted to see if the percentage of drug and alcohol use is higher locally than nationally.
e. A new SAT study course is tested on 12 individuals. Pre-course and post-course scores are recorded. Of interest is the average increase in SAT scores