Explain why given does not provide convincing evidence

Assignment Help Basic Statistics
Reference no: EM131400551

Suppose r2 = .95

(a) Explain why this does not provide convincing evidence that the least squares line provides a good fit to a scatterplot of the points.

(b) If the least squares line provides a poor fit, what does this say about using Yˆ versus Y¯ to estimate Y .

Reference no: EM131400551

Questions Cloud

What happens to the correlation between x and y : Consider a least squares regression line Y = .5X +2+e, and where X and e are independent and both have a standard normal distribution. What happens to the correlation between X and Y if instead Y = .5X +2+2e? Hint: What happens to the residuals.
How do teen courts function : What are teen courts?What types of juvenile offenders are the best types of clients for teen courts?How do teen courts function?What are the success rates of teen courts for reducing youth recidivism?
Conclude that the two variables under study are independent : Imagine a study where the correlation between some amount of an experimental drug and liver damage yields a value for r close to zero and the hypothesis H0: ρ = 0 is not rejected. Why might it be unreasonable to conclude that the two variables und..
Existence of an unemployment insurance system : How could the existence of an unemployment insurance system or other transfer programs have reduced the severity of the Great Depression?
Explain why given does not provide convincing evidence : Explain why this does not provide convincing evidence that the least squares line provides a good fit to a scatterplot of the points.
What is standard probation : What is standard probation? What are some of its characteristics? What are some of the conditions of standard probation?
Key macroeconomic policy tool : 1. Controlling the money supply is a key macroeconomic policy tool. Explain how the Fed controls the money supply and what separates the balance sheet of the Fed from that of ordinary commercial banks.
Predict whether pearsons correlation increase or decrease : Note that this restricts the range of X values. Without looking at the data, can you predict whether Pearson's correlation will increase or decrease after these points are removed?
Discuss role of conflict in criminal justice organization : Discuss the role of "Conflict" in Criminal Justice Organizations.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

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