Question

Determine relationship in Linear Regression

Determine relationship in Linear Regression

Homework Answers

Answer #1

Solution:

Given that,

Linear regression attempts to model the relationship between two variables by fitting a linear equation to observed data. One variable is considered to be an explanatory variable, and the other is considered to be a dependent variable.

For example, a modeler might want to relate the weights of individuals to their heights using a linear regression model.

A linear regression line has an equation of the form Y = a + bX, .

where X is the explanatory variable and Y is the dependent variable.

The slope of the line is b, and a is the intercept (the value of y when x = 0).

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
What is the relationship between the algebraic equation for a straight line and the linear regression...
What is the relationship between the algebraic equation for a straight line and the linear regression equation?
Concept Questions We've discussed that a linear regression assumes the relationship between variables is linear: it...
Concept Questions We've discussed that a linear regression assumes the relationship between variables is linear: it forms a constant slope. But suppose the data is U-shaped or inverted U-shaped. How would you created a linear regression so the line would follow this data? (hint: think of what the equation for a U-shaped line looks like.) Suppose you applied a scalar to a variable. Then you used both the original variable and the scaled variable as explanatory variables. What would happen...
1.What is the relationship between covariance analysis, correlation analysis and linear regression analysis? 2. What is...
1.What is the relationship between covariance analysis, correlation analysis and linear regression analysis? 2. What is the difference between covariance, correlation and linear regression analysis?
Simple linear regression can be used to determine the fitted model for an exponential regression function...
Simple linear regression can be used to determine the fitted model for an exponential regression function if we make the correct logarithmic transformation on the exponential formula. True or False
Researchers used a simple linear regression model to study relationship between daily servings of fruits and...
Researchers used a simple linear regression model to study relationship between daily servings of fruits and vegetables and blood cholesterol levels (mg/mL), and found the regression coefficient is -2.2 (i.e. negative 2.2). What is the correct interpretation of the coefficient?
For each of the following research questions, determine whether correlation, linear regression, multiple regression, or logistic...
For each of the following research questions, determine whether correlation, linear regression, multiple regression, or logistic regression is best suited to answer it. What is the strength of the relationship between the speed with which a runner completes a one mile run and their resting heart rate? What percent of the variation in resting heart rate is explained by the speed with which a runner completes a one mile run? What percent of the variation in resting heart rate is...
The regression line that gives the linear relationship between the number of seeds or pellets eaten...
The regression line that gives the linear relationship between the number of seeds or pellets eaten and the amount of time to eat the food is predicted amount of time to eat the food = 42.8565 – 0.0554(number of seeds or pellets eaten). Suppose one day Parsnip eats 30 seeds. Based on the regression line, how long do you predict it will take Parsnip to eat these 30 seeds?
A sales manager used linear regression to find the positive linear relationship between advertising expenditures and...
A sales manager used linear regression to find the positive linear relationship between advertising expenditures and sales. the equation was calculated from the following data from 7 randomly selected advertising campaigns: Advertising Expenditures - $8,000 / $22,000 / $15,000 / $39,000 / $32,000 / $12,000 / $45,000 Sales - $95,000 / $190,000 / $125,000 / $ 225,000 / $285,000 / $150,000 / $350,000 If the sales manager used regression equation to predict the amount of sales that he can expect...
A linear regression line Group of answer choices implies a cause and effect relationship between x...
A linear regression line Group of answer choices implies a cause and effect relationship between x and y. may be used to predict a value of y if the corresponding value of x is given. No correct answer given
5. A sales manager used linear regression to find the positive linear relationship between advertising expenditures...
5. A sales manager used linear regression to find the positive linear relationship between advertising expenditures and sales. the equation was calculated from the following data from 7 randomly selected advertising campaigns: Advertising Expenditures - $8,000 / $22,000 / $15,000 / $39,000 / $32,000 / $12,000 / $45,000 Sales - $95,000 / $190,000 / $125,000 / $ 225,000 / $285,000 / $150,000 / $350,000 If the sales manager used regression equation to predict the amount of sales that he can...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT