The Following Multiple Regression Output Was Generated from a Study

question 69

Multiple Choice

The following multiple regression output was generated from a study in which two independent variables are included.The first independent variable (X1) is a quantitative variable measured on a continuous scale.The second variable (X2) is qualitative coded 0 if Yes,1 if No. Based on this information,which of the following statements is true?

• A)The model explains nearly 63 percent of the variation in the dependent variable.
• B)If tested at the 0.05 significance level,the overall model would be considered statistically significant.
• C)The variable X1 has a slope coefficient that is significantly different from zero if tested at the 0.05 level of significance.
• D)All of the above are true.

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Definitions:

Single-Phase System

A system in which the customer receives service from only one station and then exits the system.

Interarrival Time

The duration of time between the arrival of one entity and the next in a queue or system.

Random Number Intervals

involves generating intervals based on random numbers for various purposes, such as simulations in operations research or statistical sampling.

Weekly Demand Distribution

The variance of demand for a product or service over the course of a week, illustrating how customer needs fluctuate within this timeframe.