A hospital employs 60 nurses. The hospital human resources director wants to understand what incentives motivate nurses to work various shifts. A random sample of 25 nurses was selected to receive an anonymous survey. Of those selected, 19 completed the survey.
all sandhill cranes Alaskan-bred sandhill cranes ✔ 50 tagged cranes
A school district sends an online survey to all parents of students in the district asking for feedback on proposed educational changes based on recent tax cuts.
A news broadcast invites residents of a community to visit their website and vote for or against new legislation that will decrease benefits for the elderly.
equally ✔ lessmore
correctly estimated ✔ overestimatedunderestimated
A company that manufactures car seats completes quality control tests per government regulations. The quality control department randomly selects 20% of the seats manufactured to evaluate safety conditions. Of those seats, 0.0005% indicated a safety problem. Which of the following describes the population and sample?
A biologist is studying the migratory patterns of sandhill cranes. His study focuses only on sandhill cranes that are bred and hatched in Alaska, and eventually migrate south to warmer climates. Each year he randomly tags a sample of 50 cranes with GPS trackers to gather data about their migratory patterns.
A researcher at Ohio State University is growing bacteria in her laboratory for a study. She extracts a group of 50 cells to observe under a microscope for cell structure. Which of the following describes the population and sample?
Identify the sampling designs that use convenience sampling. Check all that apply.A restaurant surveys all its breakfast customers about meal quality.An online poll is conducted with high school students about the use of technology in the classroom.A company that produces natural food flavorings conducts taste tests with all its employees.A radio show requests listeners call in to vote on the outcome of a local election.A museum puts an online survey code on each ticket sold to gather information about satisfaction with exhibits.A veterinarian collects information from his or her clients about dog food brand preferences.
Identify the sampling designs that use convenience sampling. Check all that apply.A grocery chain uses information from customer purchases to select products for future promotions.The first three people arriving at a movie theater are asked about their favorite movie genre.A company’s internal website posts a link to a survey with questions about how to improve business practices.A zoo has a booth where people can complete a comment card about future programs the zoo might consider for students.The drama club interviews patrons of the play about their interests in fine arts.A marine biologist measures weights of alligators in the Florida swamplands.
Identify the sampling designs that use voluntary response sampling. Check all that apply.A used car dealer surveys potential customers about the type of car they are interested in so he can plan his future inventory.A pharmaceutical company advertises for subjects to participate in an online survey about insulin pumps for diabetics.An online poll is created for sports fans to vote on the winner for the Super Bowl.Each employee is given a mandatory survey to complete about health benefits.A census taker randomly calls homes to gather data about household income and family demographics.After each customer service call, callers are asked to stay on the line to complete a brief satisfaction survey.
A news broadcast invites residents of a community to visit their website and vote for or against new legislation that will decrease benefits for the elderly.
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