Four hundred mice were collected in Virginia Beach. The 400 mice would represent a
The weights of all of the students at Virginia Tech were collected. These students would represent a
Mrs. Boyd want to find out how many of her students enjoyed Geometry in the past 5 years. Which choice best represents a sample that would give accurate data?
A record label wanted to see if people in New Hampshire liked their new logo. Which choice best represents a population?
5000 emails were sent to former Ocean Lakes Students to determine their opinion on their school experience. 450 students responded to the survey. This is an example of
Dave conducted two different surveys about student engagment in school. For Survey A, he stood at the entrance of the library prior to lunch and surveyed the first 20 students. For Survey B, he used a random number generator to select 20 students in the school to survey.
What would be the better survey?
A high school guidance counselor wants to know what percentage of students have tried marijuana (in any form). He sends out an email to 350 randomly chosen students and asks them if they have tried marijuana. Of the 123 that responded, 4% said that they tried marijuana.
Describe the nonresponse bias
A high school guidance counselor wants to know what percentage of students have tried marijuana (in any form). He sends out an email to 350 randomly chosen students and asks them if they have tried marijuana. Of the 123 that responded, 4% said that they tried marijuana.
Describe the response bias
A high school guidance counselor wants to know what percentage of students have tried marijuana (in any form). He sends out an email to 350 randomly chosen students and asks them if they have tried marijuana. Of the 123 that responded, 4% said that they tried marijuana.
based on the sample info...the 4% who responded that they tried marijuana would be 'lower or higher' than the actual results, had the sample been taken more accurately and without bias.
Compare a population and a sample. Use definitions in your notes to support your answer.