SCENARIO 14-11 a Weight-Loss Clinic Wants to Use Regression Analysis

question 177

Multiple Choice

SCENARIO 14-11 A weight-loss clinic wants to use regression analysis to build a model for weight loss of a client (measured in pounds) .Two variables thought to affect weight loss are client's length of time on the weight-loss program and time of session.These variables are described below: Y Weight loss (in pounds) Length of time in weight-loss program (in months) 1 if morning session, 0 if not Data for 25 clients on a weight-loss program at the clinic were collected and used to fit the interaction model: Y Output from Microsoft Excel follows:
-Referring to Scenario 14-11, which of the following statements is supported by the analysis shown?

• A)There is sufficient evidence (at = 0.05)of curvature in the relationship between weight loss (
• Y)and months on program
• B)There is sufficient evidence (at = 0.05)to indicate that the relationship between weight loss (
• Y)and months on program varies with session time.
• C)There is insufficient evidence (at = 0.05)of curvature in the relationship between weight loss (
• Y)and months on program
• D)There is insufficient evidence (at = 0.05)to indicate that the relationship between weight loss (
• Y)and months on program varies with session time.

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Definitions:

Static Address

A permanent Internet Protocol (IP) address assigned to a computer or device in a network, in contrast to a dynamically assigned IP address.

Dynamic Address

A changing IP address assigned by an internet service provider to a device each time it connects to the internet.

IP Address

A unique string of numbers separated by periods that identifies each device using the Internet Protocol to communicate over a network.

Circuit Switching

A method of communication where a dedicated channel or circuit is established for the duration of a transmission between two endpoints.