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Chapter 3: Q.2.1 (page 171)

To determine the least-squares regression line:

Short Answer

Expert verified

The regression equation is y^=16.3+0.0908x

Step by step solution

01

Given Information

Given in the question that a data set. We need to determine the least-squares regression line

Body weight (lb)
Backpack weight (lb)
170
26
187
30
109
26
103
24
131
29
165
35
158
31
116
28
02

Explanation

Assume x is Bodyweight and yis Backpack weight.

Find the regression line using the steps provided on theTi-83calculator:

1. Click on STAT > Edit.

2. Enter the data set in L1and L2.

L13. Again, press STAT > CALC >LinReg (ax+b).

4. Press Enter.

The obtained output is: y^=16.3+0.0908x

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