Question about Texas Instruments TI-85 Calculator

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I want to do a chi-square test on the TI-85

I am learning about contingency tables in my statistics class, and would like to be able to use the TI-85 to perform the chi-squared test rather than doing it by hand. The TI-83 will do it, so I am wondering if somebody has a program or a method that will work on the 85.

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The chi-square test is used for a lot more than just contingency tables.

I found one program for the TI-86 (which is basically the same machine as the TI-85, only with more memory) which claims to do the chi-square goodness of fit test.

You might also want to browse through this archive.

Posted on Nov 29, 2012

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Posted on Jan 02, 2017

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SOURCE: i'm trying to find a chi squared test statistic

if your solution comes out negative, it will say this because x^2 can never be negative. therefore, your answer is out of the domain of the function and will not register because it isnt a real solution
what function are you using?

Posted on Apr 28, 2010

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SOURCE: i'm trying to find a chi squared test statistic

Having gone over a month with no response, I assume this is no longer a problem.

Posted on Jun 14, 2010

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1 Answer

Chi square


Chi-squared distributions: http://en.wikipedia.org/wiki/Chi-squared_distribution

Chi-squared test: http://en.wikipedia.org/wiki/Chi-squared_test

Or do you have some other question in mind?

Oct 28, 2013 | Cars & Trucks

1 Answer

I'm in a statistics class and need to find the area under a standard normal cube. I have a TI-81. How do i find that specific function?


Hey there,
You are looking for the cube root function which can be found under the MATH menu selection. the answer you get will simply need to be squared and you have your answer

Oct 03, 2013 | Texas Instruments TI-81 Calculator

1 Answer

There are several applications missing on my ti-84. I don't have tcdf, chi squared cdf, or chi squared GOF test. How can I get these on my calculator?


Those functions are in the DISTR menu, accessible by pressing 2ND [DISTR].

If you need any of them, you can download apps from
http://education.ti.com/educationportal/sites/US/productDetail/us_ti84p.html?bid=7

Apr 07, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

Hello. I just wanted to ask you how do I calculate the variance and standard deviation in my cfx9850GB plus. I had a quick look at the manual but I couldnt find the info. thankz .


This shows you how to enter your data and calculate some statistical values. Keep in mind that the variance is the square of the standard deviation.


In the main menu select [STAT] icon to enter Stat mode and display the statistical data lists. Use the statistical data lists to input data and perform statistical calculations. Use the arrows to move the highlighting around the lists.
Example: Enter the following values in List 1
1st line enter 90 [EXE]
2nd line 85 [EXE]
3 79 [EXE]
4 75 [EXE]
5 70 [EXE]
6 68 [EXE]
7 56 [EXE]

When finished you press [F2:Calc], then [F1:1Var] and the statistical results appear on screen.

Title of screen : 1-Variable
x bar =74.7142857
Capital Sigma x= 523
Capita Sigma X squared = 39851
x lower case sigma n = 10.5249945
x lower case sigma n-1= 11.3682934
n = 7
Scroll down with Down arrow to access other data
minX =56
Q1=68
Med =75
Q3=85
Xbar -x lower case sigma n =64.1892911
x bar x lower case sigma n = 85.2392802
maxX=90
Mod=90

All you have to do now, is to look at the theory you learned and interpret what these values mean.

Sep 05, 2010 | Casio CFX-9850G Plus Calculator

1 Answer

I'm trying to find a chi squared test statistic but my ti 83 plus says err:domain .. what do i do!?


if your solution comes out negative, it will say this because x^2 can never be negative. therefore, your answer is out of the domain of the function and will not register because it isnt a real solution
what function are you using?

Apr 25, 2010 | Texas Instruments TI-89 Calculator

1 Answer

Error 23 stat


Quoting from page B-7 of the Guidebook:

-----
You are attempting a stat calculation with lists that are not appropriate; for example, you are requesting a statistical analysis with fewer than two statistical data points. The frequency (y value) for a 1-VAR analysis must be an integer >= 0.
------

If you simply want 1-variable statistics for two sets of data, you'll have to calculate them separately.

Oct 20, 2009 | Texas Instruments TI-85 Calculator

1 Answer

I don't have a chi square goodness of fit test, where can i find?


You can find the chi-square test for two-way tables and the chi-square goodness of fit tests in the STAT TEST menu (STAT Left).

You can find the chi-square probability density function in the DISTR menu (2ND [DISTR])

Mar 31, 2009 | Texas Instruments TI-84 Plus Silver...

3 Answers

Standard deviation


standard deviation

calculate mean of a data set:

1. Turn calc. on or press MODE SeTUP
2.Press 3 for STAT
3. Press 1 for VAR
4.Enter values for X column
5. WHen done entering press SHIFT 1
6.Press 5
7.Press 2 to calculate the mean
8.Press =

Oct 05, 2008 | Casio FX-115ES Scientific Calculator

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