Determine the correlation coefficient

Assignment Help Other Subject

Reference no: EM133535523

Assignment: Elements of Statistics- Content Mastery Test

Instructions:

After studying and reviewing the concepts and practices, answer all the questions provided on the module concepts: correlation and simple linear regression.

The table below gives the amount of time students in a class studied for a test and their test scores.

Hours Studied 1 0 3 1.5 2.75 1 0.5 2
Test Score 78 75 90 89 97 85 81 80

Graph the data on a scatter plot, find the line of best fit, and write the equation for the line you draw.

Consider the following aspects when submitting your test:

Question 1) Build the scatter plot and bring a conclusion about its use of it.

Question 2) Determine the correlation coefficient.

Question 3) Determine the standard error

Question 4) Determine the regression equation.

Question 5) According to the regression equation found, bring the meaning for coefficients, b0, and b1, and provide a conclusion based on these values

Question 6) Find the value of the test score when hours studied equals 7.

Reference no: EM133535523

Questions Cloud

Defined by internal experts within the company : The company may also retain a specialist or group of specialists to help in the process of defining the problem before putting it in writing

Critical inquiry and evidence-based practice for rns : Critical Inquiry and Evidence-based Practice for RNs - Type II diabetes Mellitus - application for nursing practice as well a discussion of methods to make

Why is it important to test the significance of the slope : Why is it important to test the significance of the slope in the simple linear regression model? Why it can be dangerous to use the least-squares regression?

What you learned in this module, as well as personal : Discuss some of the challenges that companies are likely to face when they hire contingent and part-time employees. If you were responsible for hiring decision

Determine the correlation coefficient : Build the scatter plot and bring a conclusion about its use of it. Determine the correlation coefficient. Determine the regression equation.

Describe some groups with which you have participated : Describe some groups with which you have participated. This could be a job, team, club, class, etc. What have you noticed about how those groups help

Would you recommend that the company sign the contract : Compute the price and quantity variances. - Compute the variable overhead rate and efficiency variances. Would you recommend that the company sign the contract?

What is the expected return on the asset : Consider an asset with a beta of 1.3, a risk-free rate of 5%, and a market risk premium of 9%. What is the expected return on the asset?

Write a critical analysis essay in which you discuss topics : Write a short critical analysis essay in which you discuss the topics in this module. Include information related to the reports from the APA.

User Account

All Pages