5 Written Questions
5 Multiple Choice Questions
- 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
- is an extreme data point that does not t into the overall pattern of the rest of the data.
- is a variable which represents a measurable quantity,
one which can be represented by a number.
- 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.
- 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.
5 True/False Questions
Q3 → 75/100 * N
random sampling → is a sampling technique in which every member of the population should have the same (random) chance of being in the sample as any other member of the
simple random sampling → is a sampling method which uses random or probabilistic selection as part of its design.
sample bias → 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.
five-number summary → for a data set consists of the minimum value in the data set
Min, the first quartile Q1, the median M = Q2, the third quartile Q3, and the maximum value Max.