E-CodeOne-way ANOVA — a TI-84 Plus CE program
ANOVA1 is a TI-BASIC program for the TI-84 Plus CE. Compare the means of 2 to 6 groups: type each group's data, get the between- and within-group sums of squares, degrees of freedom, the F statistic, its p-value and eta squared.
What it asks for and what it shows
It asks for 4 values at its prompts. In the example below it shows SSB, SSW, DF B, DF W, F, ETA², P.
Example run
One of its oracle test cases: “three fertilizers”. The inputs are typed in order, and the results are the values the case expects on the screen.
| Step | Value |
|---|---|
| You enter | |
| Input 1 | 3 |
| Input 2 | {23,25,21,22,24} |
| Input 3 | {30,28,27,31,29} |
| Input 4 | {24,26,25,23,27} |
| The screen shows | |
SSB= | 93.33333333 |
SSW= | 30 |
DF B= | 2 |
DF W= | 12 |
F= | 18.66666667 |
ETA²= | 0.7567567568 |
P= | 2.071308142E-4 |
How it's checked
6 test cases, each checked against an independent method. Replayed key by key on a virtual TI-84 Plus CE, they make 42 checks.
How E-Code checks every program
Run it or put it on your calculator
- Open the library in the TI-84 Plus CE calculator and pick “One-way ANOVA” (ANOVA1).
- Put it on your own calculator with a computer and a USB cable, or type it in by hand.
Related programs
- Regression: linear, quadratic, exponential with r²
- Hypothesis tests: z, t, two-sample t, chi-square
- Confidence intervals: z, t, proportion, two-sample
- Binomial, Poisson and normal probabilities
- Chi-square test of independence
All TI-84 Plus CE statistics programs · All TI-84 Plus CE programs