Question

Asked Nov 13, 2019

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How do find the answer on paper and the TI84

Step 1

Given data

y = a + bx

b = - 0.98

a = 20.878

r2 = 0.678976

r = -0.824

The least square regression equation is given by

y = a + bx

y = 20.878 + (-0.98) x

No of situps a person who watches 5.5 hours of tv is given by

putting x = 5.5 in least square regression equation

y = 20.878 + (-0.98) * 5.5**y = 15.488**

Step 2

**Using TI84 **

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