Question
In: Statistics and Probability
The Department of Engineering at NJIT conducted a study on the average number of trains passing...
The Department of Engineering at NJIT conducted a study on the average number of trains passing through the Hoboken train station. The study showed that the average is six per hour and that the passing of these trains is approximated by the Poisson distribution. (a) Find the probability that no trains passed through the Hoboken train station between 8am and 9.0am on Tuesday. (b) Find the probability that exactly four trains passed during that time. (c) Find the probability that exactly six trains passed during that time. (d) Find the probability that ten or more trains passed during that time. Please show all work.
Solutions
orchestra answered 2 years agoRelated Solutions
. A study was conducted to examine the correlation between number of study hours and students...
. A
study was conducted to examine the correlation between number of
study hours and students grads in exam. Study hours for students:
2, 3, 5, 6, 8, 10, 10, 2, 5, 6, 5, 3, 7, 6, 2, 7, 6, 8, 2, 5 Grads
in exam for students: 3, 4, 6, 7, 8, 10, 9, 8, 3, 6, 5, 4, 6, 6, 3,
7, 6, 3, 4, 5 1- as ungrouped data find the frequency, accumulated
relative frequency, and accumulative...
. A study was conducted to examine the correlation between number of study hours and students...
. A
study was conducted to examine the correlation between number of
study hours and students grads in exam. Study hors for students: 2,
3, 5, 6, 8, 10, 10, 2, 5, 6, 5, 3, 7, 6, 2, 7, 6, 8, 2, 5 Grads in
exam for students: 3, 4, 6, 7, 8, 10, 9, 8, 3, 6, 5, 4, 6, 6, 3, 7,
6, 3, 4, 5 1- as ungrouped data find the frequency, accumulated
relative frequency, and accumulative...
A study was conducted with vegetarians to determine if the number of grams of protein they...
A study was conducted with vegetarians to determine if the
number of grams of protein they ate daily was related to their
diastolic blood pressure. The data are as follows: Grams of Protein
(x): 4 6.5 5 5.5 8 10 9 8.2 10.5 Diastolic BP (y): 62 79 83 82 84
92 88 86 95 Determine if there is a significant relationship
between the variables, and if there is, give the equation of the
regression line and predict the diastolic...
A study was conducted with vegetarians to determine if the number of grams of protein they...
A study was conducted with vegetarians to determine if the
number of grams of protein they
ate daily was related to their diastolic blood pressure. The
data are as follows:
Grams of Protein (x):
4
6.5
5
5.5
8
10
9
8.2 10.5
Diastolic BP (y):
62
79
83
82
84
92
88
86
95
Determine if there is a significant relationship between the
variables, and if there is, give the
equation of the regression line and predict the diastolic...
Question 8 A traffic engineering study on traffic delay was conducted at intersections with signals on...
Question 8
A traffic engineering study on traffic delay was conducted at
intersections with signals on urban streets. Three types of traffic
signals were utilized in the study: (1) pretimed, (2)
semi-actuated, and (3) fully actuated. Five intersections were used
for each type of signal. The measure of traffic delay used in the
study was the average stopped time per vehicle at each of the
intersections (seconds/vehicle). The data follow.
Pretimed
Semi-actuated
Fully actuated
36.6
17.5
15
39.2
20.6
10.4...
Researchers conducted a study on how the number of powerboats registration may affect the number of...
Researchers conducted a study on how the number of powerboats
registration may affect the number of manatees killed between year
of 1977 and 1990. The data set is contained in the file boat.xlsx.
Use Excel to open the data set. The first column is the year, the
second column is the number of powerboats registration (in
thousand), and the third column is the number of manatees
killed.
1) From the research objective, determine which variable is
explanatory and which variable...
A study of the population average income in a certain area was conducted. A sample of...
A study of the population average income in a certain area was
conducted. A sample of 25 households was selected at random for a
poll. The sample based average annual income was found as (X-bar) =
$53,600, with the sample standard deviation found as (S = $12,000).
Assume that individual records are normally distributed with an
unknown population standard deviation.
Estimate the population average income with the 99% confidence.
Answer all questions below.
Critical Value =
Margin of Error =...
A study is conducted to look at the time students exercise in average. In a random...
A study is conducted to look at the time students exercise in
average. In a random sample of 115 students, a researcher finds
that the mean time students exercise is 11.3hrs/month with a
standard deviation of 6.43hrs/month. Using the Critical Value
Methodand a 5% significance level, can a researcher conclude that
in average students exercise less than 15 hours per month?
A study is conducted to determine the average price of a gallon of gas in Arizona....
A study is conducted to determine the average price of a gallon
of gas in Arizona. A sample of 10 stations had a mean of $1.85 and
a standard deviation of 0.06. Find a 95% confidence interval for
the average price of a gallon of gas in Arizona. (Assume
appropriate conditions are satisfied and be sure to round
precisely.)
Group of answer choices
(1.81, 1.89)
(175, 1.95)
(1.82, 1.88)
(1.79, 1.91)
A study conducted by the research department of a pharmaceutical company claims that the annual spending...
A study conducted by the research department of a pharmaceutical
company claims that the annual spending (per person) for
prescription drugs for allergy relief,
μ1
, is greater than or equal to the annual spending (per person)
for non-prescription allergy relief medicine,
μ2
. A health insurance company conducted an independent study and
collected data from a random sample of
225
individuals for prescription allergy relief medicine. The sample
mean is found to be
17.5
dollars/year, with a sample standard...
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