Determining the least-squares regression line

Assignment Help Basic Statistics
Reference no: EM132855327

A scatterplot of y versus x shows a positive, nonlinear association. Two different transformation are attempted to try to linearize the association: using the Logarithm of the y values and using square root of the y values. Two least-squares regression lines are calculated, one that uses x to predict log(y) and the other that uses x to predict square root y. which of the following would be the best reason to prefer the least-squares regression line that uses x to predict log(y)

The slope is greater

The value of r^2 is smaller

the residual plot has more random scatter

The distribution of residuals is more normal

Reference no: EM132855327

Questions Cloud

Determine mean and standard deviation for the distribution : C) Determine the mean and standard deviation for the distribution under the assumptions made in part A.
Ethical frameworks in professional practice : Understanding of the importance of issue by developing your own ethical framework for ethical decision making when dealing with vulnerable groups.
Find the z-score for the height of 58 inches : For 261 female heights, the mean was 64.8 inches and the standard deviation was 3.4 inches. The shortest person in this sample had a height of 58 inches.
Explain legal issues related to sandra treatment : Explain legal issues related to Sandra treatment. Describe two specific interventions you might use to help Sandra deal with those effects.
Determining the least-squares regression line : A scatterplot of y versus x shows a positive, nonlinear association. Two different transformation are attempted to try to linearize the association:
Calculate the bid-offer spread on the exchange rate : Calculate the bid-offer spread on the exchange rate between the pound and the euro expressed in direct quotation from a British perspective
Describe a sample space : Two coins are tossed and a (6-sided) die is rolled. Describe a sample space (probability space), together with the probability, on which such a situation can
How does current administration immigration policy impact : How does current administration's immigration policy impact economic, security, and humanitarian policy? How was it treated prior to 9/11?
How does this information affect your analysis : The German investment would be protected by the Chinese government against imports. How does this information affect your analysis and recommendation

Reviews

Write a Review

Basic Statistics Questions & Answers

  Unisys maintains a hurricane database which provides info

Unisys maintains a hurricane database which provides information on hurricanes in the Atlantic/ Caribbean/Gulf of Mexico and the Eastern Pacific Ocean.

  Are the two input variables correlated with the output

Are the two input variables correlated with the output? Use Excel's CORREL function to find out. Interpret your results intuitively.

  Translate into symbolic form - ancient etruscans

Translate the following arguments into symbolic form.- Either the ancient Etruscans were experienced city planners and they invented the art of writing or they were highly skilled engineers and they invented the art of writing.

  Make triangular arbitrage between the exchange rates

As a percentage of an arbitrary starting amount, about how large would transaction costs have to be to make triangular arbitrage between the exchange rates

  What is the explained error of the regression equation

For a regression that has an r-squared of .39 what is "explained error" of regression equation? What is r-crit for an n of 18, with an alpha of .01, two-tailed?

  Distribution of match lengths is normal on grass

Sports and Leisure. The Wimbledon Championships tennis tournament, where women players curtsy to the Queen and fans eat strawberries and cream.

  Population of interest of the survey

According to a recent survey of 500 randomly selected residents of Popular City, it was found that 38% are in favor of raising city taxes in order to build a new stadium for the local baseball team. (a) What is the population of interest of the su..

  Establish a committee of three department

The Computer Systems Department has eight faculty, six of whom are tenured. Dr. Vonder, the chair, wants to establish a committee of three department faculty members to review the curriculum. If she selects the committee at random:

  Determine probability that you will pick out highest number

Use simulation to determine the probability that you will pick out the highest number.

  Hypothesis testing-quarterly customer surveys

Quarterly customer surveys are taken at a medical center. Each individual department has scores and is comparted to the medical center average. Department of Physical Therapy had scores of 9.14, 9.19 and 7.75 for quarters 1-3 respectively.

  Trend effects using the data below for scenario

Use the charting tool in Excel to develop a regression model to fit the trend effects using the data below for this scenario.

  Find the prediction equation for managerial success

Refer to Exercise 9.42 (p. 503). in which managerial success, y, was modeled as a function of the number of contacts a manager makes with people outside his or her : work unit, x, during a specific period of time. The data are repeated in the tabl..

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