Question
In: Statistics and Probability
1) A) The physical plant at the main campus of a large state university recieves daily...
1)
A) The physical plant at the main campus of a large state
university recieves daily requests to replace florecent lightbulbs.
The distribution of the number of daily requests is bell-shaped and
has a mean of 45 and a standard deviation of 4. Using the
68-95-99.7 rule, what is the approximate percentage of lightbulb
replacement requests numbering between 45 and 57?
B) A company has a policy of retiring company cars; this policy looks at number of miles driven, purpose of trips, style of car and other features. The distribution of the number of months in service for the fleet of cars is bell-shaped and has a mean of 45 months and a standard deviation of 3 months. Using the 68-95-99.7 rule, what is the approximate percentage of cars that remain in service between 36 and 39 months?
C) The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a bell-shaped distribution. This distribution has a mean of 60 and a standard deviation of 8. Using the empirical rule, what is the approximate percentage of 1-mile long roadways with potholes numbering between 36 and 76?
Solutions
orchestra answered 2 years agoRelated Solutions
The physical plant at the main campus of a large state university recieves daily requests to...
The physical plant at the main campus of a large state
university recieves daily requests to replace florecent lightbulbs.
The distribution of the number of daily requests is bell-shaped and
has a mean of 63 and a standard deviation of 11. Using the
68-95-99.7 rule, what is the approximate percentage of lightbulb
replacement requests numbering between 63 and 85?
The physical plant at the main campus of a large state university recieves daily requests to...
The physical plant at the main campus of a large state
university recieves daily requests to replace florecent lightbulbs.
The distribution of the number of daily requests is bell-shaped and
has a mean of 53 and a standard deviation of 7. Using the
68-95-99.7 rule, what is the approximate percentage of lightbulb
replacement requests numbering between 53 and 74?
The maintenance department at the main campus of a large state university receives daily requests to...
The maintenance department at the main campus of a large state
university receives daily requests to replace fluorecent
lightbulbs. The distribution of the number of daily requests is
bell-shaped and has a mean of 59 and a standard deviation of 3.
Using the 68-95-99.7 rule, what is the approximate percentage of
lightbulb replacement requests numbering between 50 and
59?
What is the answer to this? (1) A President of a California State University campus banned...
What is the answer to this?
(1) A President of a California State University campus banned
any criticism to human rights in Palestine ,,, Professors and
students have been banned from exposing Zionist crimes in
Palestine. Professors and students went to court to complain about
illegality of such a decision. Their lawyer is soliciting your
advise to show that President of University has failed as a leader
–administratively.
and then this question...
(2) MoH (Ministry of Health) hired you as...
Task: Network planning A university has a main campus and a remote campus at another location....
Task: Network planning
A university has a main campus and a remote campus at another
location. The default router to the Internet on the main campus has
an IP address of 10.0.0.1/24. The main campus network is connected
to the Internet through a router called RouterA. The main campus
has no more than 15000 staff and students. The remote campus
network is connected to the main campus network through a router
called RouterB. The remote campus has no more than...
At a large university it is known that 45% of the students live on campus. The...
At a large university it is known that 45% of the students live
on campus. The director of student life is going to take a random
sample of 100 students. What is the probability that more than half
of the sampled students live on campus?
9. The daily requirements for campus patrol officers at the University for the week are: Day...
9. The daily requirements for campus patrol officers at the
University for the week are:
Day
M
T
W
TH
F
S
SU
Requirement
4
5
6
7
10
9
9
Each
officer works five days a week and must have two consecutive days
off. You are scheduling officers to work the appropriate
days of the week. The second officer
you schedule is to work which days of the week?
2. A survey of 200 students is selected randomly on a large university campus. They are...
2. A survey of 200 students is selected randomly on
a large university campus. They are asked if they use a laptop in
class to take notes. The result of the survey is that 128 of the
200 students responded ”yes."
A. Find 98% confidence interval
B. How would the confidence interval change if the
confidence level had been 90% instead of 98%?
C. How would the confidence interval change if the
sample size had been 300 instead of 200?...
A survey of 200 students is selected randomly on a large university campus They are asked...
A survey of 200 students is selected randomly on a large
university campus They are asked if they use a laptop in class to
take notes. The result of the survey is that 70 of the 200 students
use laptops to take notes in class.
What is the value of the sample proportion? (0.5
pts)
What is the standard error of the sampling proportion?
(0.5 pts)
Construct an approximate 95% confidence interval for the true
proportion by going 2 standard...
A survey of 150 students is selected randomly on a large university campus. They are asked...
A survey of 150 students is selected randomly on a large
university campus. They are asked if they use a laptop in class to
take notes. The result of the survey is that 60 of the 150 students
responded "yes." An approximate 98% confidence interval is
(0.307, 0.493). Complete parts a through d below. b) How would
the confidence interval change if the sample size had been 375
instead of 150? (Assume the same sample proportion.) The new
confidence interval...
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