5 Written questions
5 Multiple choice questions
- 75/100 * N
- for a data set is the difference between the third quartile and the
first quartile: Q3 Q1.
- is one of the contributing factors to sampling error. It is the result of choosing a bad sample. Good methods of sample selection minimize sample bias.
- is a sampling method which uses random or probabilistic selection as part of its design.
- is a controlled placebo study in which neither the subjects nor the scientists conducting the study know which subjects are in the treatment group and which are in the control group.
5 True/False questions
outlier → is an extreme data point that does not t into the overall pattern of the rest of the data.
mean → Max-min
confounding variable → is a possible contributing cause in a clinical study or trial that
could produce the same effect as the variable under investigation. A good clinical study or trial attempts to eliminate confounding variables using a control group.
Q1 → 75/100 * N
range → of a quantitative data set is a summary of the center of the data set.
It is computed by adding the data elements together and dividing by N, the number of