A detection device is used to monitor the level of carbon monoxide (CO) in the air. The following data, in ppm (parts per million) were collected from a single location inside a recreation facility: 7.28 6.98 8.50 5.56 9.13 7.34 5.56 7.98 8.18 4.03 8.69 9.05 This data is also on Statcrunch under the group data as, Carbon Monoxide (CO) in the air. Questions: a) Identify the variable in this data. b) Compute the sample mean, median, and sample standard deviation, rounded to 3 decimal places.

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
Question

b?

A detection device is used to monitor the level of carbon monoxide (CO) in the
air. The following data, in ppm (parts per million) were collected from a single
location inside a recreation facility:
7.28
6.98
8.50 5.56
9.13 7.34
7.98
5.56
8.18
4.03
8.69 9.05
This data is also on Statcrunch under the group data as, Carbon Monoxide (CO) in
the air.
Questions:
a) Identify the variable in this data.
b) Compute the sample mean, median, and sample standard deviation, rounded to
3 decimal places.
c) Are there outliers in this data set? To determine this, first compute the lower
and upper outlier boundaries. Include these in answer. Show your work or explain
how you obtained the outlier boundaries.
d) Compute a 95% confidence interval (use 3 decimal places) for the population
mean carbon monoxide level in the air in this location. Write the answer using the
format: lower boundary< u < upper boundary
e) Interpret the 95% confidence interval in the context of the problem.
Transcribed Image Text:A detection device is used to monitor the level of carbon monoxide (CO) in the air. The following data, in ppm (parts per million) were collected from a single location inside a recreation facility: 7.28 6.98 8.50 5.56 9.13 7.34 7.98 5.56 8.18 4.03 8.69 9.05 This data is also on Statcrunch under the group data as, Carbon Monoxide (CO) in the air. Questions: a) Identify the variable in this data. b) Compute the sample mean, median, and sample standard deviation, rounded to 3 decimal places. c) Are there outliers in this data set? To determine this, first compute the lower and upper outlier boundaries. Include these in answer. Show your work or explain how you obtained the outlier boundaries. d) Compute a 95% confidence interval (use 3 decimal places) for the population mean carbon monoxide level in the air in this location. Write the answer using the format: lower boundary< u < upper boundary e) Interpret the 95% confidence interval in the context of the problem.
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
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