Interpret the slope of given line in context

Assignment Help Basic Statistics
Reference no: EM131401443

Speed. How does the speed at which you drive affect your fuel economy? To find out, researchers drove a compact car for 200 miles at speeds ranging from 35 to 75 miles per hour. From their data, they created the model Fuel Efficiency^ = 32 - 0.1 Speed and created this residual plot:

858_Figure.jpg

a) Interpret the slope of this line in context.

b) Explain why it's silly to attach any meaning to the y-intercept.

c) When this model predicts high Fuel Efficiency, what can you say about those predictions?

d) What Fuel Efficiency does the model predict when the car is driven at 50 mph?

e) What was the actual Fuel Efficiency when the car was driven at 45 mph?

f) Do you think there appears to be a strong association between Speed and Fuel Efficiency? Explain.

g) Do you think this is the appropriate model for that association? Explain.

Reference no: EM131401443

Questions Cloud

Find the future value of account : Benigno deposited $1,000, at the END of every month for 3 years in a savings account. If the account paid 12% interest, compounded monthly, use Table 12-1 from your text to find the future value of his account.
What is the purpose of a code of conduct : How will you communicate your message to the management teams? What is the purpose of a code of conduct? Why is it important for a company to have a written code of conduct?
Recommend national university to others : Why would you recommend national university to others. Yes, Why or No, Why not? Please provide at least 15 sentences.
Gathering of financial representatives : The plaintiff attended a presentation by Jones at a gathering of financial representatives. At the presentation, Jones invited attendees to put their business cards in a basket for a drawing and stated that the person whose card was drawn and who ..
Interpret the slope of given line in context : Interpret the slope of this line in context.- Explain why it's silly to attach any meaning to the y-intercept.- When this model predicts high Fuel Efficiency, what can you say about those predictions?
How difficult would it be to implement your plan why : How difficult would it be to implement your plan? Why? Why are scheduling and cost control important for project success? Who should be in control of the scheduling and cost control process?
Analysis of your correlation and bivariate regression : Review this week's Learning Resources and media program related to regression and correlation.Using the SPSS software, open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you choose) found in the Learning Resour..
What is meant by organizing : In your own words. What is meant by organizing? Describe how organizing affects personal and organizational effectiveness, including recommendations for improvement. Please provide at least 2 paragraphs and 1 scholarly research (include URL).
Discuss how is sensory adaptation essential : How is sensory adaptation essential for everyday psychological functioning? In what ways might it also impede functioning in certain circumstances

Reviews

Write a Review

Basic Statistics Questions & Answers

  Define agreement between observed & expected frequencies.

It has been suggested that the number of particles emitted in a n interval may be adequately modelled by a Poisson distribution

  Verify that the mann whitney wilcoxon test rejects given

Verify that the Mann-Whitney-Wilcoxon test rejects with α = 0.05. Estimate the probability that a randomly sampled participant receiving drug.

  Predict the annual salaries of employees

A statistics student wants to predict the annual salaries of employees at one large company. He wants to know if he can use the number of years that someone has worked at the company to predict his or her annual salary.

  A may 2007 gallup poll found that only 11 of a random

a may 2007 gallup poll found that only 11 of a random sample of 1003 adults approved of attempts to clone a human.find

  Find optimal solution using the modi method

Starting with the initial solution derived by the nw corner method identify the cell w/the best cost improvement index and the quantity that can be transferred to that cell.

  The mental development index mdi of the bayley scales of

the mental development index mdi of the bayley scales of infant development is a standardized measure used in

  How long must customers wait in line before service begins

On average, how long must customers wait in line before service begins?

  Testing for linear correlation

Testing for a linear correlation. Construct a scatter plot, find the value of the linear correlation coefficient r, and find the critical values of r from the table below using a=0.05.

  What waiting time represents the first quartile

The time spent(in days) waiting for a kidney transplant for people ages 35-49 can be approximated by the normal distribution, as shown in the figure to the right. (a) What waiting time represents the 99th percentile? (b) What waiting time represent..

  Mean score on a standardized test

A mean score on a standardized test is 50 with a standard deviation of 10. Answer the following

  Find null-alternative hypotheses to test life of new battery

What are the null and alternative hypotheses to test if the new battery has longer life than the old battery? Draw a conclusion for the hypothesis test. Make sure you state your conclusion in the context of the problem.

  How do you calculate a participant score if she was at

How do you calculate a participant score if she was at the 67th percentile? I only have the standard deviation of the population and the mean. s = 27 x = 448.95

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