(b) Based on your sample, graph the 95% confidence interval for the population mean of all the weight gains for baby boys in their first year. • Enter the values for the lower and upper limits on the graph to show your confidence interval. . For the point (+), enter the claim 3.454 from the study. 95% confidence interval: 0.000 0.000 2.000 4.000 5.000 6.000 8.000 10.000 10.000
(b) Based on your sample, graph the 95% confidence interval for the population mean of all the weight gains for baby boys in their first year. • Enter the values for the lower and upper limits on the graph to show your confidence interval. . For the point (+), enter the claim 3.454 from the study. 95% confidence interval: 0.000 0.000 2.000 4.000 5.000 6.000 8.000 10.000 10.000
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:Español
A r.able indicator of a baby's health is the weight gained in the fir
year of the baby's life. Assume that the population of all such weight
gains for baby boys is approximately normally distributed. A study
claimed that the mean of this population is 3.454 kg. As a practicing
pediatrician, you want to test this claim. So, you select a random sample
of baby boys, and you record the weight each gained in their first
year.
Follow the steps below to construct a 95% confidence interval for the
population mean of all the weight gains for baby boys in their first year.
Then state whether the confidence interval you construct contradicts the
study's claim. (If necessary, consult a list of formulas.)
(a) Click on "Take Sample" to see the results for your random
sample.
Take Sample
Sample size:
0
Point estimate:
0
Sample standard deviation:
0
Critical value:
0
Enter the values of the sample size, the point estimate of the
mean, the sample standard deviation, and the critical value you
need for your 95% confidence interval. (Choose the correct critical
value from the table of critical values provided.) When you are
done, select "Compute".
Compute
0.000
Number of baby boys
0.000
15
2.000
Sample mean
6.192
Standard error:
4.000
Margin of error:
95% confidence interval:
95% confidence interval:
5.000
(b) Based on your sample, graph the 95% confidence interval for the
population mean of all the weight gains for baby boys in their first
year.
• Enter the values for the lower and upper limits on the graph to
show your confidence interval.
• For the point (+), enter the claim 3.454 from the study.
6.000
Sample standard
deviation
1.791
O No, the confidence interval does not contradict the
claim. The mean of 3.454 kg from the study is inside the
95% confidence interval.
O No, the confidence interval does not contradict the
claim. The mean of 3.454 kg from the study is outside
the 95% confidence interval.
O Yes, the confidence interval contradicts the claim. The
mean of 3.454 kg from the study is inside the 95%
confidence interval.
O Yes, the confidence interval contradicts the claim. The
mean of 3.454 kg from the study is outside the 95%
confidence interval.
Critical values
0.005 2.977
8.000
X
0.010-2.624
10.025 2.145
10.050 1.761
0.100
X
1.345
=
X
(c) Does the 95% confidence interval you constructed contradict the
claim made by the study?
Choose the best answer from the choices below.
10.000
10.000
5
5
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps with 2 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman