Determine nature of the relationship between two variables

Assignment Help Basic Statistics
Reference no: EM131404565

Sometimes the main purpose of a regression analysis is to determine the nature of the relationship between two variables, and sometimes the main purpose is to use the equation in the future to predict a y value when the x value is known. Explain which purpose is likely to be the main reason for a regression analysis between

x = percent fat consumed in diet, y = blood pressure

x = SAT score, y = college grade point average

x = height at age 4, y = height at age 21

x = hours of sleep per night, y = score on IQ test*

Reference no: EM131404565

Questions Cloud

Analyze the strategic scope of the horizontal acquisition : In this case study you are to analyze the strategic scope of the horizontal acquisition by Verizon Communications (hereafter referred to as Verizon) of Verizon Wireless from Vodafone
Calculate three-point moving averages for the series : Construct a time series chart and examine it for evidence of a trend and recurring components for parts of the day.
Compute profitability per pound under abc system at lehigh : Compute the profitability per pound under the ABC system at Lehigh. For each of the five sample products, compute the profitability per pound per unit of the constraint under the TOC approach implemented at Lehigh.
Discuss any potential ethical or social responsible issues : Select/ identify a major consumer product and the company that makes it. Provide a brief history of them both. (Select an existing publicly owned company. View the link Public Companies for a comprehensive list of publicly traded companies.)Identi..
Determine nature of the relationship between two variables : Sometimes the main purpose of a regression analysis is to determine the nature of the relationship between two variables, and sometimes the main purpose is to use the equation in the future to predict a y value when the x value is known.
Determine the payback period for each site : Using a discount rate of 8% calculate the net present value for each site.
Sketch a scatterplot with an outlier : Sketch a scatterplot with an outlier that would inflate the correlation between the two variables. Sketch a scatterplot with an outlier that would deflate the correlation between the two variables.
Find the confidence interval for the expected value of y : Using a significance level of 5%, test whether the two regressors Saturation and Transisomers have the same effect on the response. Find the 95% confidence interval for the expected value of Y corresponding to X1 = 30 and X2 = 15
What would you suggest as a name for the entire procedure : Suppose the statistics community is having a contest to rename regression to something more descriptive of what it actually does. What would you suggest as a name for the entire procedure? As a name for the regression line?

Reviews

Write a Review

Basic Statistics Questions & Answers

  What is meant by a designed experiment

1. What is meant by a designed experiment? 2. "A factor level is the same as a treatment." Is this statement always true? If not, what conditions are neces- sary for it to be true? 3. What is necessary for an experiment to be "balanced"?

  Find the short-run competitive equilibrium

Find the short-run competitive equilibrium: the price per ride, number of rides per day, and the profit per cab per day. Is the taxicab market in long-run equilibrium?

  Who takes the gmat

Who takes the GMAT? In many settings, the "rules of probability" are just basic facts about percents. The Graduate Management Admission Test (GMAT) Web site provides the following information about the undergraduate majors of those who took the te..

  State the null and alternative hypotheses state the

it is speculated that statistics classes in community college has a retention rate of 65 this is the percentage of

  An instructor gives his class a set of 13 problems with the

an instructor gives his class a set of 13 problems with the information that the next quiz will consist of a random

  In regression analysis the residuals represent

In regression analysis, the residuals represent

  Want a sample size of about 60 30 controls and 30 cases

Want a sample size of about 60 (30 controls and 30 cases). At 5% significance and 80% power.How do i determine the standard deviation and mean difference.And how do i arrive at the 60? my study design is case-control.

  State the appropriate null and alternative hypotheses in

reconsider the previous problem about the age of a college students mother when the student was born. now suppose you

  Question on hypothesis testing problems and t test

A sample of 64 observations is selected from a normal population. The sample mean is 215, and the sample standard deviation is 15. Conduct the following test of hypothesis using the .03 significance level.

  Theorem for sample of scores on psychology exam

What score was earned by more students than any other score? Why? What was the highest score earned on the exam?

  The founders of modern statistics

yields (for appropriate values of the constants a, b, c, and d) most of the important distributions of statistics. Verify that the differential equation gives

  Vrify that the function fx 3414x x 0 1 2 is a

verify that the function fx 3414x x 0 1 2... is a probability mass function. determine the requested probabilitiesa

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