How do you calculate the SSXX in a TI 84SolutionFirst things

How do you calculate the SSXX in a TI 84

First things first, put your data into your calculator

Okay, Now you will run the linear regression function and pass it these two lists

STAT] > [>] > [CALC] > [4] LinReg(ax+b)

And your output should look like this:

Alright, now we have to create list of the values of our regression function

[Y=]

Now we are going to drop our regression equation into the Y1 slot, so please clear it out. Then follow this step.

[VARS] > [5] Statistics > [>] > [>] EQ > [1] RegEQ

Now you should see the Y1 equation filled in with our function. Quit out of the Y= screen and get back to the command line.

[VARS] > [>] Y-Vars > [1] Function… > [1] Y1

You should see Y1 on your command line… follow these steps and you will soon have your SSE.

DONE!

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