Explain the difference between correlation and regression

Assignment Help Basic Statistics
Reference no: EM13578555

Consider you estimate the following regression model, y = α + βx + u

where y is the dependent variable, x is the independent variable and u is the error term.

(a) Explain the difference between correlation and regression and explain the assumptions of the regression model.

(b) What are the interpretation of α and β?

(c) How would you estimate the unknown population parameters?

(d) What are the statistical properties of the method you proposed?

Reference no: EM13578555

Questions Cloud

The purchasing department of major company has 100 : the purchasing department of major company has 100 employees 22 of whom have no children 50 of whom have exactly one
Question prepare the adjusting entries in some instances : freeny corporation adjustment data and the unadjusted trial balance.adjustment dataunusual supplies on hand
A girl having two siblings is chosen at random what is the : consider the following question.a girl having two siblings is chosen at random. what is the probability that she has no
Suppose that the null hypothesis is h0 micro 1000 and the : suppose that the null hypothesis is h0 micro 1000 and the alternative hypothesis h1 micro 6 1000. assuming sigma
Explain the difference between correlation and regression : consider you estimate the following regression model y alpha betax uwhere y is the dependent variable x is the
To monitor uniformity of thickness what type of control : to monitor uniformity of thickness what type of control chart do you
Examine the total significance of the regression results : predicting winning percentage for the nflthe national football league nfl records a variety of performance data for
What is the predicted wage for a female worker with 10 : suppose you estimate a model obtaining wage 0.620 0.506 times educ 2.27 times female were wage is measured in
Prepare the general journal entries to record each of these : candro corp. began operations on may 12010 and completed the following transactions during its first month of

Reviews

Write a Review

Basic Statistics Questions & Answers

  Evaluate the binomial distribution

Let X be the number of correct guesses by your friend in the 100 trials and Use the Normal approximation with the continuity correction - Which of the following might be reasonably modeled by the binomial distribution

  Suppose that the scores of architects on a particular

Suppose that the scores of architects on a particular creativity test are normally distributed. What percentage of architects have Z scores? a. above .10; b. below .10

  Difference between the two groups of scores

A researcher plans to compare two treatment conditions by measuring one sample in treatment 1 and a second sample in treatment 2. The researcher will then compare the scores for the two treatments. If there is a difference between the two groups o..

  Population proportion of mice

In a sample of 55 mice, a biologist found that 42% were able to run a maze in 30 second or less. Find the 90% limit for the population proportion of mice who can run a maze in 30 second or less.

  Hypothesis testing of mean of shopping time

An article in Baltimore Sun claimed that the typical supermarket trip takes a mean of 22 minutes. Suppose that in an effort to test this claim, you select a sample of 50 shoppers at a Baltimore City Giant.

  Find probability that women think men are less kind-gentle

At the 0,05 level, can we conclude that women think men are less kind, gentle, and thoughtful in the later survey compared with the earlier one?

  Show a stem-and-leaf display

Drug Store News (September2002) provided data on annual pharmacy sales for the leading pharmacy retailers in the United States. Show a stem-and-leaf display.

  Recalculating the interval estimate

Assuming the sigma of 200 was actually the standard deviation for the sample, recalculate the interval estimate. Discuss how this changed your result from that in part b.

  Beverage cans for an upcoming promotion

Schlepsi has contracted with AluminiCorp to produce special beverage cans for an upcoming promotion. They want 25% of the Schlepsi cans produced by AluminiCorp to be imprinted with the phrase 'A Winner is You!' along with a promotion code for the ..

  Preparing mixed integer programming model

Prepare a mixed integer programming model for this problem.

  Find percentage of least-squares line

What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? What percentage is unexplained?

  Probability of having sample mean less for random sample

IQ score in this sample is . If the organization's claim is correct, what is the probability of having a sample mean of or less for a random sample of this size?

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