Chapter 01 Quiz (with videos solutions)_

A campaign manager is interested in determining the average age of voters in the state of New York. The entire group of voters in New York is an example of a…

A campaign manager is interested in determining the average age of voters in the state of New York. The average age, if it were possible to determine, would be an example of a…

The statistical methods used on sample data in order to provide general population information are known as…

The statistical methods that summarize, organize, and simplify data for presentation are known as…

A property or characteristic of a population is called a…

A property or characteristic of a subset of the population is called a…

A measured / observed group of individuals from the population that has been selected for analysis is called a…

Which of the following procedures is NOT a form of inferential statistics?

The average height of the children in a school is 110cm. Which of the following does this statement describe?

A _______ is a numerical characteristic of a sample and a ______ is a numerical characteristic of a population?

Based on exit polls from the last election, 58% of eligable female voters are predicted to vote for candidate A in the next federal election. Which of the following does this statement describe?

Based on previous students, a college professor determines that the majority of students who skip a test or defer writing the final will fail the course. Which of the following does this statement describe?

In a sample of 600 students in a university, 180 of them or 30% visit StatsDoesntSuck.com on a weekly basis. The 30% is an example of a:

A student who is running for student council president at a school with an enrollment of 50,000 students decides to conduct a survey. In the survey, 62% of the 400 eligible student voters surveyed say they plan to vote for him. The population of interest is the:

You asked seven of your classmates about their GPA. From your survey results, you conclude that the average GPA of all students at York is 4.0. What is this an illustration of?

The Be-Bright lightbulb company has developed a new bulb whose average lifetime is unknown. In order to estimate the average lifetime of their product, 100 bulbs are randomly selected from a large production line and tested; their average lifetime is found to be 11 years. The 11 years represents a…

Significance level measures the probability that…

Which of the following represents a population, as opposed to a sample?

Research is being done to determine the average weight of all 12,000 adult salmon on a commercial fish farm. The weights of 500 randomly selected adult salmon are measured and analyzed. The parameter in the study is…

True or False? The ‘confidence level’ measures the probability that the results of your estimation will be incorrect.