Vocab

2. Cut-off values that define regions where the test statistic is unlikely to lie.
5. A summary measure that attempts to describe a whole set of data with a single value that represents the middle or center of its distribution.
6. A statistical measurement of the spread between numbers in a data set.
9. A statistical technique that relates a dependent variable to one or more independent (explanatory) variables.
11. The number in a set of numbers that appears the most often.
12. The difference between the highest and lowest values within a set of numbers.
13. Methods used to summarize and describe the main features of a dataset.
15. How spread scores are in a distribution out.
16. Measures how much discrepancy is likely in a sample's mean compared with the population mean.

1. A quantity calculated to indicate the extent of deviation for a group as a whole.
3. A statistical test that is used to compare observed and expected results.
4. The average of a data set, found by adding all numbers together and then dividing the sum of the numbers by the number of numbers.
7. A range of values so defined that there is a specified probability that the value of a parameter lies within it.
8. Describe the many ways in which statistics derived from observations on samples from study populations can be used to deduce whether or not those populations are truly different.
10. The value in the middle of a data set.
14. A statistical test that is used to compare the means of two groups.