A statistics student at a small liberal arts college who is curious about the relationship between the amount of time students at his college spend on social networking sites and their performance at school decides to conduct a survey. Four research strategies for collecting data are described below. In each, name the sampling method proposed and any bias you might expect.

He randomly chooses 3 floors of the largest dorm on campus and distributes a paper survey to each resident on those floors. He places a box in the common room of the dorm to collect the completed surveys.

1. What is the sampling method?

2. What type of bias would you expect? (check all that apply)

A. Nonresponse bias

B. Selection bias

C. Response bias

D. No bias in this survey

The sampling method is random and from a representative community.

The type of bias is A. Nonresponde bias.

Step-by-step explanation:

The sample method is random and from a representative community because he is randomly choosing 3 floors of the largest drom on campus.

The type of bias that he would expect is the nonreponse bias because he choose to sample students, college students and they are usually occupied, he has to expect that not the 100% percent of the students will answer his paper survey. Some of them will only ignore it and some other will answer it and take it to the room of the dorm, butnot everyone.

answer: when you burn wood, the carbon reacts with the oxygen in the air to create ash and smoke. that is a permanent change you cannot undo that.

step-by-step explanation:

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v