Statistics

1. a straight line that describes how a response variable changes as the explanatory variable changes
5. measures the outcome of a statistical study also known as the dependent variable
7. see hypothesis test
11. a variable which takes on a non numeric description
13. observations which fall at the 25 50 and 75 percentiles of a data set
14. tells what percent of a data set falls into a given category
17. a distribution of values taken by a statistic in all possible samples of the same size from the same population
18. a variable whose value is a numeric outcome of a random phenomenon
20. using the laws of probability this is done to select members for a sample and also to assign treatments to specifc samples in experiments

2. a measure of how much the p value of a test is affected if the conditions of the hypothesis test are not met
3. the difference between the maximum and minimum values of a data set
4. a variable which takes on a numeric value
6. the point at which it will be determined that a result is statistically significant
8. a function which assigns a probability for each possible value for any discrete random variable X
9. a part of the population used to gather information about the entire population
10. the difference between and observed value of a response variable and its predicted value from a regression equation
12. a list of all possible outcomes for a random event
15. the proportion of times an outcome would occur over a large number of trials
16. a list from which a sample is chosen ideally the sampling frame consists of the entire population
19. when individual outcomes are uncertain, but there is a pattern to the distribution of the outcomes over time