7 The table below was obtained by using data for 40 males Th

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The table below was obtained by using data for 40 males. The response (y) variable is weight (in pounds), and the predictor (x) variables are HT (height in inches), WAIST (waist circumference in cm), and CHOL (cholesterol in mg).

Predictor (x) Variables

P-value

R2

R2

Regression Equation

HT, WAIST, CHOL

0.000

0.823

0.808

y =?199+2.3?

HT+2.2?

WAIST?0.1

HT, WAIST

0.000

0.818

0.808

y =?208+2.16 HT+2.15 WAIST

HT, CHOL

0.002

0.324

0.287

y =?141+4.65 HT+0.00547 CHOL

WAIST, CHOL

0.000

0.783

0.771

y =?48.4+2.28 WAIST?0.0106 CHOL

HT

0.001

0.273

0.254

y =?139+4.55?

WAIST

0.000

0.790

0.785

y =?44.1+2.37?

CHOL

0.874

0.001

0.000

y =173?0.00233?

CHOL

If a male has a height of 71in, a waist circumference of 111 cm, and a cholesterol level of 254 mg, what is the best predicted value of his weight? The best predicted value of this male\'s weight is______ (Round to the nearest whole number as needed.)

Solution

y =-199+2.3*71+2.2*111 -0.1*254 =183