Find the confidence level and α for a 91​% confidence interval. What is the confidence​ level? _______ ​(Type an integer or a​ decimal.)

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
Find the confidence level and α for a 91​% confidence interval.
What is the confidence​ level?
_______
​(Type an integer or a​ decimal.)
8.1.25
Question Help
A government bureau publishes annual price figures for new mobile homes. A simple random sample of 36 new mobile homes yielded the following prices, in thousands of dollars. Assume that the population
standard deviation of all such prices is $6.6 thousand, that is, $6,600. Use the data to obtain a 99.7% confidence interval for the mean price of all new mobile homes.
Click the icon to view a table of prices of new mobile homes.
The 99.7% confidence interval is from $
to $
(Round to the nearest dollar as needed.)
i
Prices of New Mobile Homes
Prices ($1000s) of 36 Randomly Selected New Mobile Homes
66.9
69.3
58.6
57.9
64.3
62.1
54.5
72.3
62.5
67.3
74.7
62.4
57.4
66.0
60.7
56.1
48.7
72.0
49.6
56.4
71.7
59.1
64.2
63.7
55.9
51.8
53.7
55.9
77.8
77.3
61.3
74.3
58.3
69.0
63.2
78.0
Print
Done
Transcribed Image Text:8.1.25 Question Help A government bureau publishes annual price figures for new mobile homes. A simple random sample of 36 new mobile homes yielded the following prices, in thousands of dollars. Assume that the population standard deviation of all such prices is $6.6 thousand, that is, $6,600. Use the data to obtain a 99.7% confidence interval for the mean price of all new mobile homes. Click the icon to view a table of prices of new mobile homes. The 99.7% confidence interval is from $ to $ (Round to the nearest dollar as needed.) i Prices of New Mobile Homes Prices ($1000s) of 36 Randomly Selected New Mobile Homes 66.9 69.3 58.6 57.9 64.3 62.1 54.5 72.3 62.5 67.3 74.7 62.4 57.4 66.0 60.7 56.1 48.7 72.0 49.6 56.4 71.7 59.1 64.2 63.7 55.9 51.8 53.7 55.9 77.8 77.3 61.3 74.3 58.3 69.0 63.2 78.0 Print Done
8.2.69
Question Help
Data on investments in the high-tech industry by venture capitalists are compiled by a corporation. A random sample of 18 venture-capital investments in a certain business sector yielded the accompanying data,
in millions of dollars. Determine and interpret a 95% confidence interval for the mean amount, µ, of all venture-capital investments in this business sector. Assume that the population standard deviation is $1.82
million. (Note: The sum of the data is $112.40 million.)
Click here to view the investment data.
Click here to view page 1 of the table of areas under the standard normal curve.
Click here to view page 2 of the table of areas under the standard normal curve.
The 95% confidence interval is from $
million to $
million.
(Round to two decimal places as needed.)
Investment Data
5.31
5.80
5.42
9.74
2.89
5.49
5.40
5.66
4.50
8.63
5.85
6.85
4.58
7.85
9.17
4.85
8.30
6.11
Print
Done
Transcribed Image Text:8.2.69 Question Help Data on investments in the high-tech industry by venture capitalists are compiled by a corporation. A random sample of 18 venture-capital investments in a certain business sector yielded the accompanying data, in millions of dollars. Determine and interpret a 95% confidence interval for the mean amount, µ, of all venture-capital investments in this business sector. Assume that the population standard deviation is $1.82 million. (Note: The sum of the data is $112.40 million.) Click here to view the investment data. Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. The 95% confidence interval is from $ million to $ million. (Round to two decimal places as needed.) Investment Data 5.31 5.80 5.42 9.74 2.89 5.49 5.40 5.66 4.50 8.63 5.85 6.85 4.58 7.85 9.17 4.85 8.30 6.11 Print Done
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 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
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