Purchase Solution

# Regression Models and Dependent Variables

Not what you're looking for?

One of the assumptions for regression models is that the dependent variable must be at least interval scale data. Can you please explain why.
And A local company wanted to predict the weekly sales based on the weekly newspaper advertising dollars. The model that result is: &#375;= -0.1 + 0.7x, where the dependent variable is the amount of sales realized during the week and the independent variable is the amount spent on newspaper advertising during the week. Interpret the meaning of the values "-0.1" and "0.7" in the context of the problem. Please explain in relating to an example easy to understand.

##### Solution Summary

The expert examines regression models and dependent variables.

##### Solution Preview

The regression analysis is done to correlate the dependent variable with independent variable. for this purpose, we take a model (say linear relation) of relation between two variables (dependent and independent) and do the analysis on given data. How model is good, depends on the chi-square value,i.e., the indicator of deviation of ...

Solution provided by:
###### Education
• BEng, Allahabad University, India
• MSc , Pune University, India
• PhD (IP), Pune University, India
###### Recent Feedback
• " In question 2, you incorrectly add in the \$3.00 dividend that was just paid to determine the value of the stock price using the dividend discount model. In question 4 response, it should have also been recognized that dividend discount models are not useful if any of the parameters used in the model are inaccurate. "
• "feedback: fail to recognize the operating cash flow will not begin until the end of year 3."
• "Answer was correct"
• "Great thanks"
• "Perfect solution..thank you"

##### Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

##### Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

##### Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.