Q

QuestionAnatomy and Physiology

Which of the following sampling methods would bias the set of responses? Select all that apply. - ☐ A. asking people to return a mail-in card - ☐ B. tossing a chipped number cube - ☐ C. calling people between 3:00 P.M. and 4:00 P.M. - ☐ D. interviewing pet owners about their pet's health Which of the following is an example of a statistical experiment? - ☐ A. Twenty people in a neighborhood are asked if they want more streetlights on the street. - ☐ B. More streetlights are installed on one street and people are then asked if they like the change. - ☐ C. The number of accidents on the street is compared to last year's rate. - ☐ D. People are asked to call a number to comment about the need for new streetlights. Choose the word to describe the sampling method. The first ten people who show up for class are asked to fill out a form. This is a self-selected sample. Choose the word to describe the sampling method. All students whose ID numbers are divisible by 5 are asked about what music they like. This is a systematic sample. A student wants to study the effect of meditation on the time a person is able to balance on one leg. She finds 40 volunteers who have never meditated, and records their balance times. She selects 20 of them at random, and instructs them to practice meditation daily for two weeks. In two weeks, she records the balance times for all 40 volunteers again. What is the group of volunteers who were asked to meditate called? - ☐ A. the control group - ☐ B. the experimental group - ☐ C. the sample group - ☐ D. the study group