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:

  1. Determine the Regression Equation:
    A regression equation typically takes the form:
    y=mx+by = mx + b
    where yy is the dependent variable (e.g., median women's weekly pay), xx is the independent variable (e.g., median men's weekly pay), mm is the slope, and bb is the y-intercept.

  2. Locate the Y-Intercept (bb):
    If you're given the equation or enough data to calculate it, the bb-value is the point where x=0x = 0. Interpret this value based on the context of the problem.

  3. Interpret the Y-Intercept:

    • If the interpretation is valid: Provide an explanation for what bb 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:
y=0.8x+50y = 0.8x + 50

  • The y-intercept b=50b = 50.
  • Interpretation: When x=0x = 0 (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 bb? If not, I'll guide you further to clarify the question.

Follow-Up Questions:

  1. What is the regression equation provided in this case?
  2. Are the exact data points for median men's and women's weekly pay available?
  3. Is there additional information about the context of the regression?
  4. Would you like me to calculate bb from sample data or confirm an answer?
  5. 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!

Ask a new question for Free

By Image

Drop file here or Click Here to upload

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