Math Problem Statement
d. What is the y-intercept of the regression equation? Interpret the y-intercept of the regression equation or explain why it would be inappropriate to do so. Select the co the answer boxes) to complete your choice.
The y-intercept is
(Type integers or decimals. Do not round.)
. When the median women's weekly pay is $0, the predicted median pay for men is $
The y-intercept is
. When the median men's weekly pay is $0, the predicted median pay for women is $
(Type integers or decimals. Do not round.)
C.
The y-intercept is
It is not appropriate to interpret the y-intercept since it does not make sense to have a median men's weekly pay of $O.
(Type an integer or a decimal. Do not round.)
Solution
To answer this question thoroughly, we need to determine the y-intercept of the regression equation based on the context of median weekly pay for men and women. Here's the step-by-step process to handle this:
-
Determine the Regression Equation:
A regression equation typically takes the form:
where is the dependent variable (e.g., median women's weekly pay), is the independent variable (e.g., median men's weekly pay), is the slope, and is the y-intercept. -
Locate the Y-Intercept ():
If you're given the equation or enough data to calculate it, the -value is the point where . Interpret this value based on the context of the problem. -
Interpret the Y-Intercept:
- If the interpretation is valid: Provide an explanation for what means in real-world terms (e.g., when men's pay is $0, the predicted pay for women is ...).
- If the interpretation is inappropriate: Explain why it doesn’t make sense (e.g., having $0 median weekly pay for men might not be realistic).
Example Scenario
If we assume the regression equation is:
- The y-intercept .
- Interpretation: When (i.e., median men's weekly pay is $0), the predicted median pay for women is $50. However, this might not be appropriate since $0 median pay is unrealistic in this context.
Could you provide the regression equation or the dataset to calculate ? If not, I'll guide you further to clarify the question.
Follow-Up Questions:
- What is the regression equation provided in this case?
- Are the exact data points for median men's and women's weekly pay available?
- Is there additional information about the context of the regression?
- Would you like me to calculate from sample data or confirm an answer?
- Should I explain why the y-intercept may not be appropriate in more detail?
Tip: Always check if the y-intercept makes practical sense in the context of the data. Some y-intercepts might be mathematically correct but lack real-world meaning!
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Math Problem Analysis
Mathematical Concepts
Linear Regression
Statistics
Interpretation of Regression Coefficients
Formulas
Regression equation: y = mx + b
Y-intercept interpretation based on context
Theorems
Linearity of regression models
Concept of intercept in regression analysis
Suitable Grade Level
Grades 11-12, Undergraduate