1. Consider the following newspaper headlines, and identify the population and parameter.
a)Average SAT Score for ASU Incoming Freshmen Up 200 Points
Population: Parameter:
b)North Carolinians Prefer Pepsi over Coke
Population: Parameter:
2. Consider the following scenarios and state the population, sample, and statistic.
a)Mr. Babbitt systematically choose 100 freshmen at Lake Norman to provide feedback on their transition from middle school to high school to predict how the overall freshman population transition.
Population:Sample:Statistic:
a)Andrew asked his Appalachian classmates where their favorite hiking trail was in Boone to learn where all Appalachian students like to go hiking.
Population:Sample:Statistic:
3. Abby wants to determine the most liked teacher at her school. Which type of study would be the most
practical to obtain this information?
4. Mr. Gentle wants to survey 150 students to determine which electives to offer during the next school year.
There are 1,800 students at our school. Which procedure could Mr. Gentle use to select a sample using a
systematic random sample?
5. A reporter wants to know the percentage of voters in the state who support building a new highway. What is
the reporters’ population?
6. Read the scenarios below and determine what type of studies is presented.
a)A Stat 113 instructor announces a study session to be held the night before a test. The instructor liststhe students who attended the session and compares their scores to the remaining Stat 113 students’ scores.
b)To determine whether a review session will improve his students’ test scores, a Stat 113 instructordivides his class into two groups. He then requires one group to attend a study session and compares the results of each group.
c)Priceline.com randomly emails a Customer Satisfaction Survey for certain transactions done on its site inwhich customers choose to respond or not.
7. Read the scenarios below and name whatsampling methodis presented.
a)Select three students’ from a class to receive ice cream by putting all the students’ names in a hat andpicking out three names randomly.
b)Select three females and three males to receive ice cream by putting all the males’ names in one hatand all the women’s’ names in a different hat and picking out three names from each hat.
c)Divide the class into four groups based on grade level and take a random sample of two students fromeach group.
d)A computer program picked the 2nd person from the phonebook and then every other 33rd person to call and ask their opinion on their county school system.
e)Scientist randomly pickedcities from severalstatesto find the average population in the United States.
8. Read the scenarios below and name the sample bias presented below.
a)Considering the high plane tickets during the holiday, do you plan to stay home to save money?
b)Your grandparent asks you if you are doing well in school.
c)A radio newscaster asked their audience to call in to express their views on the new speed limit bill.
d)A pollster interviews only those in poverty of whom they are planning to vote for in the presidential election.
e)Subway restaurants ask their customers to fill out a survey online to receive a cookie the next time they return, but rarely anyone completes the survey.