Question

Using data set E, answer the questions given below.

DATA SET E Microprocessor Speed (MHz) and Power Dissipation (watts) (n = 14 chips)
Chip	Speed (MHz)	Power (watts)
1989 Intel 80486	20	3
1993 Pentium	100	10
1997 Pentium II	233	35
1998 Intel Celeron	300	20
1999 Pentium III	600	42
1999 AMD Athlon	600	50
2000 Pentium 4	1300	51
2004 Celeron D	2100	73
2004 Pentium 4	3800	115
2005 Pentium D	3200	130
2007 AMD Phenom	2300	95
2008 Intel Core 2	3200	136
2009 Intel Core i7	2900	95
2009 AMD Phenom II	3200	125

Click here for the Excel Data File

Choose the dependent variable (the response variable to be "explained") and the independent variable (the predictor or explanatory variable).

Dependent Variable

Speed Power

   

Independent Variable

Power Speed

Obtain the regression equation. (Round your answers to 3 decimal places.)

Y   =     X   +

Calculate R2adj. (Round your answer to 3 decimal places.)

R2adj

Answer 1

ANSWER:

(a)

The data set has two variables one is microprocessor speed (MHz) and the other is power dissipation (watts). It can be observed that the power depends on the microprocessor speed, since the microprocessor chip has so many features for computing and performing all calculations then the usage of power will be affected along with the speed. Here power is depending on speed of the microprocessor.

So, power can be considered as dependent variable and speed can be treated as an independent variable.

Part a
Therefore, the microprocessor speed (MHz) can be considered as an independent variable and power (watts) can be treated as dependent variable.