You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 44 business days, the mean closing price of a certain stock was $116.84. Assume the population standard deviation is $9.81. The 90% confidence interval is (). (Round to two decimal places as needed.)

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
X) 6.1.36-T
Question He
You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals.
From a random sample of 44 business days, the mean closing price of a certain stock was $116.84. Assume the population standard deviation is $9.81.
The 90% confidence interval is ( ).
(Round to two decimal places as needed.)
Question Viewer
Enter your answer in the edit fields and then click Check Answer.
3 parts
remaining
Clear All
Check Answer
11:13 AM
2 Type here to search
N
1/12/2021
Del
PrtScn
F8
Home
F9
End
F10
PgUp
F11
Ins
DII
F5
F12
Esc
F6
F7
F1
F2
F3
F4
C@
%23
&
Backsp
8
9-
2
P
LEGO
(8)
7
Transcribed Image Text:X) 6.1.36-T Question He You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 44 business days, the mean closing price of a certain stock was $116.84. Assume the population standard deviation is $9.81. The 90% confidence interval is ( ). (Round to two decimal places as needed.) Question Viewer Enter your answer in the edit fields and then click Check Answer. 3 parts remaining Clear All Check Answer 11:13 AM 2 Type here to search N 1/12/2021 Del PrtScn F8 Home F9 End F10 PgUp F11 Ins DII F5 F12 Esc F6 F7 F1 F2 F3 F4 C@ %23 & Backsp 8 9- 2 P LEGO (8) 7
Expert Solution
steps

Step by step

Solved in 3 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