+
Related Flashcards
Related Topics
Cards In This Set
| Front | Back |
|
What is Hypothesis Testing?
|
An objective Method of verifying something that is NOT true
|
|
What is the purpose of Inferential Statistics?
|
To test null Hypothesis
|
|
How is statistic support achieved inferentially?
|
To show that the null hypothesis is false
|
|
What are the three criteria that researchers look for when testing inferentially?
|
1. Some relationship exists between x and y (independent) r.2. That two groups differ in some way (dependent)3. That Population x is more (adjective) than y.
|
|
Statistical testing is best suited for proving that a null hypothesis is 1. (t/f?) than it is for proving that a research hypothesis is 2. (t/f?). (circle true or false)
|
1. False2. True
|
|
What is the primary use of inferential statistics?
|
Reject H0 (null hypothesis)
|
|
What is more common... the 2 tailed non-directional test or the1 tail directional test?
|
1. 2-tailed non directional test
|
|
In a normal distribution bell curve for a 2-tailed non directional test, the research hypothesis difference should fall where?
|
At either end of the curves at about where three standard deviations above and below the mean fall.
|
|
In a normal distribution bell curve for a 1 tail directional test for a research hypothesis all difference must fall where?
|
At either... 3 standard deviations above or 3 standard deviations below the mean.
|
|
Always evaluate the results of an experiment by testing the...?
|
Null Hypothesis
|
|
What is meant by the decision rule?
|
Essentially Alpha level
|
|
Why is the alpha level critical?
|
It is the primary probability against which we test the null hypothesis
|
|
When do we set the alpha level?
|
At the beginning of the experiment
|
|
What is the decision rule?
|
It compares the sample mean to the null hypothesis mean
|
|
What is a P value?
|
Probability that the observed results could be attained if the null hypothesis is true
|
