How to Perform an ANOVA Test on a TI-83 or TI-84 …
How to Perform an ANOVA Test on a TI-83 or TI-84 Hannah Schultheis and Julie Phillis May 21, 2015
An ANOVA, or, Analysis Of Variance test, is used to determine if there is a significant difference between the means of n number of groups where n >2. To begin, you must first create a null and alternate hypothesis. The null hypothesis claims there is no difference between the means of the data sets and they are all equal. The alternate, however, is the hypothesis we believe to be true and which we are trying to find evidence in favor of, which is that there is a significant difference between the means of each data set.
Example: The National Transportation Safety Board (NTSB) wants to look at the safety of three different car sizes. They collect data from three different sizes of cars. Using the data below, determine whether the mean pressure applied to the driver's head during a crash is equal for each type of car. Determine at =.05 and =.01
Compact Cars
643
Midsize Cars
469
655
427
Full-Size Cars
484
456
702
525
402
To perform this test on a TI-83 or a TI-84 calculator, you must first enter each set of data into it's own list. To do so, you click the "STAT" button and then select the "Edit..." option.
Once all of the numerical values have been entered into the list, press the "STAT" button and tab over to the third tab titled, "TESTS."
Go all the way to the bottom of this page to the entry titled, "ANOVA(" and select this by pushing the enter button. Then enter the list numbers by pushing the "2ND" button, then the 1 button, followed by a comma, followed by "2ND" and the 2 button, followed by a comma, and lastly followed by "2ND" and the 3 button. This step must be altered if you enter more than three sets of data into your calculator. In this case you must also select the additional data lists.
Click "ENTER" and the results of the ANOVA test will magically appear on the screen before you.
The only two values you are concerned with are the F-Value and the p-Value; these are the first two numbers on the results page. For this example the F-Value is 25.175 and the p-Value is 0.0012. Now that those two values are determined you have to compare the p-Value to the alpha levels 0.05 and 0.01. Since the p-Value for the example is smaller than 0.01 it is estimated that there is significant evidence to accept the alternate hypothesis that says there is a significant difference in means. Had the p-Value been smaller than 0.05, but greater than 0.01 we would
accept the alternate hypothesis with strong evidence. When the ANOVA test gives you a p-Value that is greater than both 0.05 and 0.01 the alternate hypothesis is to be rejected. Happy learning!
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- how to perform an anova test on a ti 83 or ti 84
- statistics with the ti 84 calculator mr waddell
- ti 83 84 calculator the basics of statistical functions
- using the ti 83 84 plus chapter 11 additional hypothesis
- using your ti 83 84 calculator for hypothesis testing the
- graphing calculators in teaching statistical p values
- using the ti 83 84 plus chapter 8 hypothesis testing
- find p values with the ti83 ti84 san diego mesa college
- finding p values ti 84 instructions
- finding t critical values with your calculator
Related searches
- how to place an ad on craigslist
- how to perform homans sign
- how to post an ad on craigslist
- ideas on how to start an essay
- how to perform satanic rituals
- how to perform business analysis
- how to file an extension on taxes
- how to put an icon on desktop
- how to perform chest physiotherapy
- how to perform chest percussion
- how to perform homans test
- how to place an icon on desktop