The Kojak Company Used Regression Analysis to Predict the Annual

question 112

Multiple Choice

The Kojak Company used regression analysis to predict the annual cost of utilities. The results were as follows: Utilities Cost
Explained by Direct Labor Hours
$\begin{array}{ll}\text { Constant } & \$ 9,650 \\\text { Standard error of Y estimate } & \$ 875.20 \\R \text { - squared } & 0.7650 \\\text { No. of obs ervations } & 33\\\text { Degrees of freedom } & 31 \\\text { X coefficient(s) } & 4.43 \\\text { Standard error of coefficient(s) } & 0.917\end{array}$ The variable cost per direct labor hour is:

• A) $4.437
• B) $875.20
• C) $0.917
• D) $0.765

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Definitions:

Phosphate

A chemical compound containing the phosphate ion, PO4^3-, which plays a critical role in biological systems, including energy transfer and the structure of DNA and RNA.

Backbone

The series of vertebrae extending from the skull to the tail in vertebrate animals, providing support and protecting the spinal cord.

Topoisomerases

Enzymes that relieve twists and kinks in a DNA molecule by breaking and rejoining the strands.

DNA Molecules

The carriers of genetic information in living organisms, consisting of two long chains of nucleotides twisted into a double helix.