625 500 375 250 125 7.5 15.0 22.5 30.0 Life Expectancy (yr) Dependent variable is: Gestation R-Squared = 72.2% Variable Coefficient Constant -39.5172 LifExp 15.4980 Gestation (days)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Topic Video
Question

Gestation For women, pregnancy lasts about 9 months.
In other species of animals, the length of time from
conception to birth varies. Is there any evidence that
the gestation period is related to the animal’s lifespan?
The first scatterplot shows Gestation Period (in
days) vs. Life Expectancy (in years) for 18 species
of mammals. The highlighted point at the far right
represents humans.

a) For these data, r = 0.54, not a very strong relation-
ship. Do you think the association would be
stronger or weaker if humans were removed?
Explain.
b) Is there reasonable justification for removing humans
from the data set? Explain.
c) Here are the scatterplot and regression analysis for the
17 nonhuman species. Comment on the strength of the
association.d) Interpret the slope of the line.
e) Some species of monkeys have a life expectancy of
about 20 years. Estimate the expected gestation period
of one of these monkeys.
625
500
375
250
125
7.5
15.0
22.5 30.0
Life Expectancy (yr)
Dependent variable is: Gestation
R-Squared = 72.2%
Variable
Coefficient
Constant
-39.5172
LifExp
15.4980
Gestation (days)
Transcribed Image Text:625 500 375 250 125 7.5 15.0 22.5 30.0 Life Expectancy (yr) Dependent variable is: Gestation R-Squared = 72.2% Variable Coefficient Constant -39.5172 LifExp 15.4980 Gestation (days)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps with 3 images

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman