Fit of a regression equation to the data

Assignment Help Basic Statistics
Reference no: EM1396217

a. What terms describe the fit of a regression equation to the data? What is the practical use of the regression equation in the real world? Explain with some examples.

b. How would you explain the meaning of the correlation coefficient (r)? How or why it is a useful concept in real life? Explain with some examples.

c. What is the importance of the coefficient of determination (r2)? How do you identify outliers in your data? How do they impact your regression equation?

Reference no: EM1396217

Questions Cloud

Research and explain these impacts at the cellular level : Hypothermia and hyperthermia can cause serious damage to the human body. Research and explain these impacts at the cellular level.
Probability for brook trouts length : The length of a Colorado brook trout is normally distributed. What is the probability that a brook trout's length:
Describe principle categories of antibody effector funcntion : Describe five principle categories of antibody effector functions. For each category, explain the roles of antibody Fab and Fc domains and cellular Fc receptors. Please answer with a full response.
Marks only reflect academic achievement-not other factors : Why do the authors suggest that marks only reflect academic achievement, and not other factors like effort or attitude?
Fit of a regression equation to the data : What terms describe the fit of a regression equation to the data? What is the practical use of the regression equation in the real world? Explain with some examples.
Marginal product of labour is units of output per hour : Currently the wage rate i $6 per hour also capital is rented at $12 per hour. If the marginal product of labour is 50 units of output per hour
Proper use of regression analysis : Think of a case in which regression analysis was used, but not properly. For instance, discuss situations in which regression analysis is not appropriate and does not add useful information to our understanding of a set of data.
Use the data to construct genetic map of the order mutations : The symbol + indicates that wild-type recombination occurs, and - indicates that wild types are not formed. Use the data to construct genetic map of the order of point mutations, and indicate the segment deleted by each deletion mutation.
Statistical and management conclusions : Solve manually and then by mega stat. Indicate your decision rule, your hypotheses and your statistical and management conclusions."

Reviews

Write a Review

 

Basic Statistics Questions & Answers

  Determining the strength of correlation

Determining the strength of a correlation is very important to determine how well one variable can predict another. To determine the strength of a correlation, we have to calculate the correlation coefficient, r.

  Computing df value for the t statistic

If the sample consists of n = 15 individuals, then compute df value for the t statistic?

  Legitimate probability distribution for this situation

What is the probability you pick a plum and Which of the following is a legitimate probability distribution for this situation

  Probabilities and expected values

Sarah is a 60 year old Anglo female in reasonably good health. She wants to take out a $50,000 term life insurance policy until she is 65.

  Characteristics to theoretical properties

Describe whether the data appear to be approximately normally distrusted by .. a. Comparing data characteristics to theoretical properties.

  Chance between registered voters in sample are democrats

Determine the chance between 39% and 41% of registered voters in sample are Democrats.

  Probability for completion of project days

Determine the probability that the project will be completed in 70 days or less.

  Demonstrating the effectiveness of the drug

To demonstrate the effectiveness of the drug, a researcher selects a sample of n = 25 children diagnosed with the disorder and measure each child's attention span before and after taking the drug.

  Claiming using two mean z test

At the .05 significance level, is there a difference in the mean number of miles traveled per month between Cincinnati and Pittsburgh employees? Use the five-step hypothesis-testing procedure.

  Information about sample standard deviation

An automobile manufacturer has a new model that they claim gets 27 miles per gallon. A consumer testing agency chooses 50 of these cars and finds that the sample mean is 25 miles per gallon and the sample standard deviation (s) is 3 miles per gall..

  Finding estimate and confidence interval for mean

Find out point estimate and 95% confidence interval for mean family dental expenses of all employees of company.

  Basic statistics of wait times

Creek Ratz is a very popular restaurant located along the coast of northern Florida. They serve a variety of steak and seafood dinners. During the summer beach season, they do not take reservations or accept a call seating.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd