Find the population regression line

Reference no: EM131557183

Assignment

1. Find the value of x2 for 12 degrees of freedom and an area of .025 in the right tail of the chi-square distribution curve. What is the value of chi-square? Round to three decimal places

2. Determine the value of x2 for 14 degrees of freedom and an area of .10 in the left tail of the chi-square distribution curve. What is the value of chi-square? Round to three decimal places

3. Determine the value of x2 for 23 degrees of freedom and an area of .990 in the left tail of the chi-square distribution curve. What is the value of chi-square? Round to three decimal places.

4. A population data set produced the following information.

N=460, ∑x=3920, ∑y=2650, ∑xy=26,570, ∑x2=48,530

Find the population regression line. Round to three decimal places. Use the format as an example when submitting your equation 456.123 + 789.123x

5. The following information is obtained from a sample data set.

n=12, ∑x=66, ∑y=588, ∑xy=2244, ∑x2=396

Find the estimated regression line Use this format as an example when submitting your equation 123 - 45x

For the following 2 questions please use 200 word answers.

6. Describe in your own words a test of independence and a test of homogeneity. Give one example of each. Explain how the expected frequencies for cells of a contingency table are calculated in a test of independence or homogeneity. How do you find the degrees of freedom for such tests? To make a test of independence or homogeneity, what should be the minimum expected frequency for each cell? What are the alternatives if this condition is not satisfied?

7. Explain the meaning of the words simple and linear as used in simple linear regression. Explain the meaning of independent and dependent variables for a regression model. Explain the difference between exact and nonexact relationships between two variables. Give one example of each. Explain the difference between linear and nonlinear relationships between two variables.

Reference no: EM131557183

Questions Cloud

What is the origin and biblical basis for the death penalty : What is the origin and biblical basis for the death penalty? Does the death penalty provide a valid punishment option in today's society

Gain or loss on the futures contract : The December CBOT Treasury bond futures contract is quoted at 92-19. If annual interest rates go up by 1.50 percentage points.

Expand matrices using basic matrix laws : Let A and B n x n matrices of real numbers. Expand (A+B) (A-B). Use, basic matrix laws - matrices is (A+B)(A-B) = A2 - B2

Eat meals management : Ready to go is an all equity firm specializing in hot ready to eat meals management has estimated the front earnings before interest and taxes.

Find the population regression line : Find the population regression line. Round to three decimal places. Use the format as an example when submitting your equation 456.123 + 789.123x.

What is the value of the levered firm : The tax rate is 35% and the current cost of equity is 15.2%. What is the value of the levered firm?

Explain typical developmental characteristics : Explain typical developmental characteristics and behaviors of kindergarten children; Explain at least one negative consequence to academic success

What should leslie do if she owns : What should Leslie do if she owns 500 shares a cat stuck and wants to use homemade leverage to offset the leverage being assumed by the firm?

What is the pretext cost : What is the pretext cost of that if the debt equity ratio is .38? Ignore taxes.

User Account

All Pages