## How do you do Chi-Square on TI-84?

Step 1: Input the data.

- First, we will input the data values for the expected number of customers each day and the observed number of customers each day. Press Stat and then press EDIT .
- Next, we will perform the Chi-Square goodness of fit test. Press Stat and then scroll over to TESTS.
- For Observed, choose list L1.

**What is p-value in Chi-Square?**

In a chi-square analysis, the p-value is the probability of obtaining a chi-square as large or larger than that in the current experiment and yet the data will still support the hypothesis. It is the probability of deviations from what was expected being due to mere chance.

### Why do we calculate chi-square?

A chi-square test is used to help determine if observed results are in line with expected results, and to rule out that observations are due to chance. A chi-square test is appropriate for this when the data being analyzed is from a random sample, and when the variable in question is a categorical variable.

**What is chi-square in statistics?**

A chi-square test is a statistical test used to compare observed results with expected results. The purpose of this test is to determine if a difference between observed data and expected data is due to chance, or if it is due to a relationship between the variables you are studying.

## What does 0.01 mean in chi-square?

Critical values of the Chi-square (X2) distribution at p = 0.05, 0.01, & 0.001 for d = 1 – 20 degrees of freedom. The critical value of a statistical test is the value at which, for any per-determined probability (p), the test indicates a result that is less probable than p.

**What is the TI-84 catalog?**

The CATALOG is an alphabetical list of all functions and instructions on the TI-84 Plus.

### What kind of data can you enter on a ti 84 Plus?

Variables and Defined Items On the TI-84 Plus you can enter and use several types of data, including real and complex numbers, matrices, lists, functions, stat plots, graph databases, graph pictures, and strings. The TI-84 Plus uses assigned names for variable s and other items saved in memory.

**What is the negation symbol on the TI-84 Plus?**

Note:On the TI-84 Plus, the negation symbol ( M) is shorter and higher than the subtraction sign ( N), which is displayed when you press ยน. Pi p (Pi, y B) is stored as a constant in the TI-84 Plus.

## How does the TI-84 Plus perform the relational test first?

The TI-84 Plus performs the relational test first because it is in parentheses, and then it adds 2, 1, and 3. This operator… Returns 1 (true) if…