A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 50 thousand miles and a standard deviation of 11 thousand miles. Complete parts (a) through (d) below. C... a. What proportion of trucks can be expected to travel between 38 and 50 thousand miles in a year? The proportion of trucks that can be expected to travel between 38 and 50 thousand miles in a year is. (Round to four decimal places as needed.) b. What percentage of trucks can be expected to travel either less than 35 or more than 70 thousand miles in a year? The percentage of trucks that can be expected to travel either less than 35 or more than 70 thousand miles in a year is%. (Round to two decimal places as needed.) c. How many miles will be traveled by at least 90% of the trucks? The number of miles that will be traveled by at least 90% of the trucks is miles. (Round to the nearest mile as needed.)
A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 50 thousand miles and a standard deviation of 11 thousand miles. Complete parts (a) through (d) below. C... a. What proportion of trucks can be expected to travel between 38 and 50 thousand miles in a year? The proportion of trucks that can be expected to travel between 38 and 50 thousand miles in a year is. (Round to four decimal places as needed.) b. What percentage of trucks can be expected to travel either less than 35 or more than 70 thousand miles in a year? The percentage of trucks that can be expected to travel either less than 35 or more than 70 thousand miles in a year is%. (Round to two decimal places as needed.) c. How many miles will be traveled by at least 90% of the trucks? The number of miles that will be traveled by at least 90% of the trucks is miles. (Round to the nearest mile 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
Related questions
Question
Transcribed Image Text:A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 50 thousand miles and a standard deviation of 11
thousand miles. Complete parts (a) through (d) below.
(...)
The number of miles that will be traveled by at least 90% of the trucks is
miles.
(Round to the nearest mile as needed.)
d. What are your answers to parts (a) through (c) if the standard deviation is 8 thousand miles?
If the standard deviation is 8 thousand miles, the proportion of trucks that can be expected to travel between 38 and 50 thousand miles in a year is
(Round to four decimal places as needed.)
If the standard deviation is 8 thousand miles, the percentage of trucks that can be expected to travel either less than 35 or more than 70 thousand miles in a year is
%.
(Round to two decimal places as needed.)
miles.
If the standard deviation is 8 thousand miles, the number of miles that will be traveled by at least 90% of the trucks is
(Round to the nearest mile as needed.)
Help me solve this
View an example
Get more help.
c)
Given1-a=0.95n=46a-1-0.95-0.05a2=0.025
Degrees of freedom(df)=n-1=46-
1-15+-+? df-+0.025 15-2.01.11.
vep1 a=0.85p-28a-1
Type here to search
/from + table)
O
10
[
6
20
Transcribed Image Text:A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 50 thousand miles and a standard deviation of 11
thousand miles. Complete parts (a) through (d) below.
C
a. What proportion of trucks can be expected to travel between 38 and 50 thousand miles in a year?
The proportion of trucks that can be expected to travel between 38 and 50 thousand miles in a year is
(Round to four decimal places as needed.)
b. What percentage of trucks can be expected to travel either less than 35 or more than 70 thousand miles in a year?
%.
The percentage of trucks that can be expected to travel either less than 35 or more than 70 thousand miles in a year is
(Round to two decimal places as needed.)
c. How many miles will be traveled by at least 90% of the trucks?
The number of miles that will be traveled by at least 90% of the trucks is miles.
(Round to the nearest mile as needed.)
d. What are your answers to parts (a) through (c) if the standard deviation is 8 thousand miles?
Help me lve this View an example
Get more help.
c) Given1-a=0.95n-46a-1-0.95-0.05a2=0.025 Degrees of freedom (df)=n-1-46-
1-15+-+~2.df-+0.025.15-2.0141
(from + tablelt=2.01411d)Given1 a=0
Type here to search
O 81
96
5
=
11
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 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