Saturday

November 1, 2014

November 1, 2014

Posted by **Anonymous** on Wednesday, September 26, 2012 at 8:01pm.

Cellphone Texts per day (X) Insuance Claims ($$) (Y)

4 800

18 2600

12 2800

26 0

20 6000

Choose the correct Estimated Regression Equation.

- statistics -
**MathGuru**, Thursday, September 27, 2012 at 7:11pmIf you need to show the work by hand, you can develop the regression equation in the following format:

predicted y = a + bx

...where a represents the y-intercept and b the slope.

To get to that point, here are some formulas to calculate along the way.

To find a:

a = (Ey/n) - b(Ex/n)

Note: E here means to add up or to find the total.

To find b:

b = SSxy/SSxx

To find SSxy:

SSxy = Exy - [(Ex)(Ey)]/n

To find SSxx:

SSxx = Ex^2 - [(Ex)(Ex)]/n

I hope this will help get you started.

- statistics -
**os**, Friday, October 11, 2013 at 4:26pm37

- statistics -
**Jennifer**, Monday, March 17, 2014 at 4:57pm80%

**Answer this Question**

**Related Questions**

statistics - the average student sends about 200 text messages a day with the ...

statistics - Use the following information to calculate the lower and upper ...

statistics - A teacher was interested in how many text messages teenagers got ...

statistics - A statistics professor receives an average of five e-mail messages ...

statistics - Assume that about 45% of all U.S. adults try to pad their insurance...

Statistics - Assume that about 45% of all U.S. adults try to pad their insurance...

Statistics - Assume that about 45% of all U.S. adults try to pad their insurance...

Statistics - Assume that about 45% of all U.S. adults try to pad their ...

Statistics - Assume that about 45% of all U.S. adults try to pad their insurance...

Statistics - Assume that about 45% of all U.S. adults try to pad their insurance...