Review of Chapter 5 in AP Statistics
Terms : Hide Images
| 1039008305 | Observational Study | the measurement of data from individuals without trying to influence the responses | 0 | |
| 1039008307 | Experiment | imposes a treatment on the individuals and observes the responses | 1 | |
| 1039008309 | Population | the group that makes up all the individuals of interest | 2 | |
| 1039008311 | Sample | the part of the population that we examine | 3 | |
| 1039008312 | Census | attempts to collect data on every individual in the population | 4 | |
| 1039008315 | Sample Design | the method by which the sample is chosen | 5 | |
| 1039008317 | Bias | systematic favor of certain outcomes | 6 | |
| 1039008319 | Voluntary Response Samples | these are biased because those people with strong opinions, especially negative ones, are most likely to respond | 7 | |
| 1039008321 | Convenience Sampling | this is biased because you only choose individuals that are easiest to reach | 8 | |
| 1039008324 | Simple Random Sample (SRS) | consists of individuals chosen from the population in a way such that every set of samples has an equal chance of being selected | 9 | |
| 1039008326 | Probability Sample | chosen by chance, but we must know what samples are possible and what chance each sample has of being chosen | 10 | |
| 1039008328 | Essential Principle of Statistical Sampling | the use of chance in the selection of the sample | 11 | |
| 1039008329 | Undercoverage | when some parts of the population are left out of the sample | 12 | |
| 1039008331 | Multistage Design | selects successively smaller groups from the population in stages in order to create a sample that has a variety of individual's clusters | 13 | |
| 1039008333 | Nonresponse | when an individual chosen for sample cannot be reached or does not cooperate | 14 | |
| 1039008334 | Experimental Units | the individuals on which the experiment is done | 15 | |
| 1039008336 | Subjects | if the experimental units are people | 16 | |
| 1039008338 | Placebo | a false treatment that is used to see if there is any effect that is not caused by the actual treatment | 17 | |
| 1039008339 | Placebo Effect | when a change is measured without a treatment being imposed | 18 | |
| 1039008340 | Simple Experimental Design | select units randomly, impose treatment on the units, and observe the results of the treatment | 19 | |
| 1039008342 | Control Group | in an experiment, the group that receives the placebo | 20 | |
| 1039008343 | Statistically Significant | when a result that is so large that it would rarely occur by chance | 21 | |
| 1039008345 | Completely Randomized | when an experiment in which all units are randomly allocated among all treatments | 22 | |
| 1039008347 | Double Blind Experiment | when neither the subjects nor those observing the subjects know which subjects are in which group | 23 | |
| 1039008349 | Matched Pair Design | when the units are paired with other, identical or nearly identical units to see the effects of the treatment | 24 | |
| 1039008351 | Block Design | uses groups of experimental units, called blocks, that are similar and may have an effect on the responses, and SRS are carried out in each block | 25 |
