Chapter 1 Test

Determine if the survey question is biased. If the question is biased, suggest a better wording. Why is eating ice cream bad for you? Choose the best question below.

• The question is biased. The wording "Do you think that eating ice cream is good for you?" would be better.

• The question is biased. The wording "How do you think eating ice cream affects your health?" would be better.

• The question is biased. The wording "Why is eating ice cream good for you?" would be better.

• The question is biased. The wording "Do you think that eating ice cream is bad for you?" would be better.

• The original question is not biased.

Tags

CCSS.RL.11-12.6

Determine whether the data set is a population or a sample. Explain your reasoning. The number of floors in each home in a town. Choose the correct answer below.

• Population, because it is a collection of the number of floors for all homes in the town.

• Population, because it is a subset of all homes in the state.

• Sample, because it is a collection of the number of floors for some homes in the town.

• Sample, because it is a collection of the number of floors for all homes in the town, but there are homes in other towns.

Tags

CCSS.HSS.IC.B.3

Determine whether the underlined number describes a population parameter or a sample statistic. Explain your reasoning. A survey of 2213 adults in a country found that 77% think that militant terrorists are a major threat to the well-being of their country. Choose the correct statement below.

• The number is a population parameter because it is a numerical description of all of the people in the country.

• The number is a population parameter because it describes the people in a sample, which is a subset of all of the people in the country.

• The number is a sample statistic because it is a numerical description of all of the people in the country.

• The number is a sample statistic because it describes the people in a sample, which is a subset of all of the people in the country.

Tags

CCSS.HSS.IC.B.3

Determine whether the statement is true or false. If it is false, rewrite it as a true statement. Using a systematic sample guarantees that members of each group within a population will be sampled. Choose the correct answer below.

• True.

• False. Using a stratified sample guarantees that members of each group within a population will be sampled.

• False. Using a cluster sample guarantees that members of each group within a population will be sampled.

Tags

CCSS.HSS.IC.B.3

A quality-control manager randomly selects 60 bottles of tomato sauce that were filled on November 19 to assess the calibration of the filling machine. What is the population in the study?

• All bottles of tomato sauce produced in the plant in the given year.

• The 60 bottles of tomato sauce selected in the plant.

• The 60 bottles of tomato sauce selected in the plant on November 19.

• All bottles of tomato sauce produced in the plant on November 19.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A quality-control manager randomly selects 60 bottles of tomato sauce that were filled on November 19 to assess the calibration of the filling machine. What is the sample in the study?

• All bottles of tomato sauce produced in the plant in the given year.

• The 60 bottles of tomato sauce selected in the plant.

• The 60 bottles of tomato sauce selected in the plant on November 19.

• All bottles of tomato sauce produced in the plant on November 19.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Observational studies are sometimes referred to as natural experiments. Explain what this means. Choose the correct answer below.

• In an observational study, subjects are assigned to different treatment groups through random selection.

• In an observational study, a researcher measures characteristics of interest of a part of a population but does not change existing conditions.

• In an observational study, a treatment is applied to part of a population and responses are observed.

• In an observational study, subjects are paired up according to a similarity.

Tags

CCSS.HSS.IC.B.3

Determine whether the statement is true or false. If it is false, rewrite it as a true statement. A population is the collection of some outcomes, responses, measurements, or counts that are of interest. Choose the correct answer below.

• False. A population is the collection of all outcomes, responses, measurements, or counts that are of interest.

• True.

• False. A sample is the collection of all outcomes, responses, measurements, or counts that are of interest.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Determine whether the data set is a population or a sample. Explain your reasoning. The salary of each teacher in a school. Choose the correct answer below.

• Sample, because it is a collection of salaries for all teachers in the school, but there are other schools.

• Population, because it is a subset of all schools in the city.

• Population, because it is a collection of salaries for all teachers in the school.

• Sample, because it is a collection of salaries for some teachers in the school.

Tags

CCSS.HSS.IC.B.3

Determine whether the statement is true or false. If it is false, rewrite it as a true statement. More types of calculations can be performed with data at the nominal level than with data at the interval level. Choose the correct answer below.

• True.

• False. The same types of calculations can be performed with data at the nominal level and with data at the interval level.

• False. More types of calculations can be performed with data at the interval level than with data at the nominal level.

Tags

CCSS.HSS.ID.A.4