Top Research Professionals
The research experts and assignment help team consists exclusively of highly qualified graduate writers, each professional with in-depth subject matter expertise and significant experience in custom academic writing.
Boost Your Final Grades By Ordering Custom Writing Help!
For similar papers and sample answers; with a few clicks, Order your research paper, thesis, dissertation writing and other assignment help services
Posted: February 3rd, 2022
Business Statistics Assignment
Week 7 Assignment
1. What does regression tell us? How is an r value used in regression?
2. What is interpolation? What is extrapolation? Why is it dangerous to extrapolate outside the experimental region (the range of your data)?
3. Given the following
Book
Pages (x variable)
Price (y variable)
A
250
$5.20
B
317
$5.95
C
234
$4.95
D
417
$7.25
E
301
$5.95
F
315
$6.00
G
389
$6.95
a. Create a scatter diagram which shows the trendline (this is the regression line) and provides the coefficient of determination on the graph itself.
b. What is the equation of the trendline from the graph? (Just copy it from your graph)
c. According to the equation of the trendline from your graph, if a book had 357 pages, how much should it cost?
d. According to the equation of the trendline from your graph, if a book costs $8.50, how many pages should it have?
e. In part d, were you interpolating or extrapolating? How do you know? How confident are you that the number of pages would really be what you calculated it to be? Why?
4. You are presented with several values for Pearson’s product moment correlation coefficient ( r ). Which one shows the strongest relationship? Why?
a. -0.97
b. -0.60
c. 0.15
d. 0.89
e. 0.95
f. 0
Study Notes, Research Topics & Assignment Examples: Issues in Criminal Justice »The impact of mandatory overtime on the quality of careWhy Choose our Custom Writing Services
We prioritize delivering top quality work sought by college students.
Discounted Pricing
Our custom writing services maintain the highest quality while remaining affordable for students. Our pricing for research papers, theses, and dissertations is not only fair considering the superior quality but also competitive with other writing services.
0% Similarity Index
We guarantee plagiarism-free, human-written content. Every product is assured to be original and not AI-generated. Our writers, tutors and editors are research experts who ensures the right formating and citation sytles are followed. To note, all the final drafts undergo rigorous plagiarism checks before delivery for submission to ensure authenticity for our valued customers.
How it works
When you decide to place an order with Dissertation Help, here is what happens: