Concept explainers
(a)
To Explain: that this transformation is linear and offers sufficient proof to support the statement.
(a)
Answer to Problem 5CRE
Yes
Explanation of Solution
Given:
Yes, the residues in the residual plot are clustered around 0 and the residual plot has no clear pattern.
(b)
To find: the prediction of the voltage at 2.1 metres for a 100-watt bulb.
(b)
Answer to Problem 5CRE
Explanation of Solution
Given:
The coefficient a and b
Calculation:
least- squares regression equation:
It is also observed that the explanatory variable is
The least-squares regression equation
x the distance and y the light intensity.
Putting the value of x by 2.1.
Therefore, the expected light intensity is 0.06735 candelas.
Chapter 12 Solutions
The Practice of Statistics for AP - 4th Edition
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