Do teachers find their work rewarding and satisfying? An article reports the results of a survey of 397 elementary school teachers and 268 high school teachers. Of the elementary school teachers, 225 said they were very satisfied with their jobs, whereas 129 of the high school teachers were very satisfied with their work. Estimate the difference between the proportion of all elementary school teachers who are satisfied and all high school teachers who are satisfied by calculating a 95% CI. (Use pelementary − phigh school. Round your answers to four decimal places.)
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In: Statistics and Probability
Do teachers find their work rewarding and satisfying? An article reports the results of a survey of 393 elementary school teachers and 261 high school teachers. Of the elementary school teachers, 221 said they were very satisfied with their jobs, whereas 123 of the high school teachers were very satisfied with their work. Estimate the difference between the proportion of all elementary school teachers who are satisfied and all high school teachers who are satisfied by calculating a 95% CI. (Use pelementary ? phigh school. Round your answers to four decimal places.)
In: Statistics and Probability
In a university 20% students belong to the school of business
(B), 15% to the school of
engineering(E) and 30% belong to the school of social sciences(S).
Of the school of
business students 35% have taken a statistics course, of the school
of engineering
students 45% have taken a statistics course, and of the school of
social sciences
students, 20% have taken a statistics course. Between the three
schools, what fraction
of students have taken a statistics course (Q)? If a randomly
selected student is found
to have taken a statistics course, what is the chance that the
student belongs to the
school of business?
In: Statistics and Probability
Do teachers find their work rewarding and satisfying? An article reports the results of a survey of 399 elementary school teachers and 261 high school teachers. Of the elementary school teachers, 227 said they were very satisfied with their jobs, whereas 128 of the high school teachers were very satisfied with their work. Estimate the difference between the proportion of all elementary school teachers who are satisfied and all high school teachers who are satisfied by calculating a 95% CI. (Use pelementary − phigh school. Round your answers to four decimal places.)
In: Statistics and Probability
Assume that you are graduating, that you plan to work for 4 years, and then to go to law school for 3 years. Right now, going to law school would require $17,000 per year (for tuition, books, livingexpenses, etc.), but you expect this cost to rise by 8 percent per year in all future years. You now have $25,000 invested in an investment account which pays a simple annual rate of 9 percent, quarterlycompounding, and you expect that rate of return to continue into the future. You want to maintain thesame standard of living while in law school that $17,000 per year would currently provide. You plan tosave and to make 4 equal payments (deposits) which will be added to your account at the end of eachof the next 4 years; these new deposits will earn the same rate as your investment account currentlyearns. How large must each of the 4 payments be in order to permit you to make 3 withdrawals, at thebeginning of each of your 3 years in law school?
(Note: (1) The first payment is made a year fromtoday and the last payment 4 years from today, (2) the first withdrawal is made 4 years from today, and(3) the withdrawals will notbe of a constant amount.)
a.$13,242.67
b.$6,562.13
c.$10,440.00
d.$7,153.56
Would like to learn to solve by financial calculator.
In: Finance
The system development project team at Birdie Masters golf
schools has been working on defining the architecture design for a
new system. The major focus of the project is a networked school
location operations system allowing each school location to easily
record and retrieve all school location transaction data. Another
system element is the use of the Internet to enable current and
prospective students to view class offerings at any of the Birdie
Masters’ locations, schedule lessons and enroll in classes at any
Birdie Masters’ location, and maintain a student progress profile—a
confidential analysis of the student’s golf skill development. The
project team has been considering the globalization issues that
should be factored into the architecture design. The school’s plan
for expansion into the golf-crazed Japanese market is moving ahead.
The first Japanese school location is tentatively planned to open
about 6 months after Minicases 267 the target completion date for
the system project. Therefore, it is important that issues related
to the international location be addressed now during design.
Prepare a set of nonfunctional requirements, including operational
requirements, performance requirements, security requirements, and
cultural and political requirements. Much information is
incomplete, but do your best.
Write in complete sentences and ensure the number of words is between 150 and 200. Include any diagram, as deemed necessary.
In: Computer Science
At Rachel's 11th birthday party, 8 girls were timed to see how long (in seconds) they could hold their breath in a relaxed position. After a two-minute rest, they timed themselves while jumping. The girls thought that the mean difference between their jumping and relaxed times would be zero. Test their hypothesis at the 5% level.
| Relaxed time (seconds) | Jumping time (seconds) |
| 29 | 21 |
| 47 | 42 |
| 32 | 26 |
| 22 | 21 |
| 23 | 25 |
| 45 | 43 |
| 37 | 35 |
| 29 | 32 |
NOTE: If you are using a Student's t-distribution for the problem, including for paired data, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.)
Part (e) What is the test statistic? (If using the z
distribution round your answer to two decimal places, and if using
the t distribution round your answer to three decimal
places.)
Part (f)
What is the p-value? (Round your answer to four decimal places.)In: Statistics and Probability
Happy Valley is the only available camping area in Rural County. It is owned by the county, which allows free access to campers. Almost all visitors to Happy Valley come from the six towns in the county. Rural County is considering leasing Happy Valley for logging, which would require that it be closed to campers. Before approving the lease, the county executive would like to know the magnitude of annual benefits that campers would forgo if Happy Valley were to be closed to the public.
An analyst for the county has collected data for a travel cost study to estimate the benefits of Happy Valley camping. On five randomly selected days, he recorded the license plates of vehicles parked overnight in the Happy Valley lot. With cooperation from the state motor vehicle department, he was able to find the town of residence of the owner of each vehicle. He also observed a sample of vehicles from which he estimated that each vehicle carried 3.2 persons (1.6 adults), on average.
In order to translate the distance traveled into an estimate of the cost campers faced in using Happy Valley, the analyst made the following assumptions. First, the average operating cost of vehicles is $0.36 per mile. Second, the average speed on county highways is 50 miles per hour. Third, the opportunity cost to adults of travel time is 40 percent of their wage rate; it is zero for children. Fourth, adult campers have the average county wage rate of $9.25 per hour. The analyst has asked you to help him use this information to estimate the annual benefits accruing to Happy Valley campers. Specifically, assist with the following tasks.
3.2 for each town).
| Town | Miles from Happy Valley (one-way) | Population (thousands) | Estimated Number of Visitors for Season | Visit Rate (Visits per 1,000 People) |
| A | 22 | 50.1 | 3,893 | 77.7 |
| B | 34 | 34.9 | 2,267 | 65.0 |
| C | 48 | 15.6 | 587 | 37.6 |
| D | 56 | 89.9 | 4,800 | 53.4 |
| E | 88 | 98.3 | 1,947 | 19.8 |
| F | 94 | 60.4 | 666 | 11.0 |
| Total | 14,160 |
In: Accounting
Case – Recreational Park Project
The public has recognized the benefits of recreation and parks as
essential to their health and quality of life. A recent survey
conducted in 2016 found that the construction of more recreational
facilities was a top priority among residents in Lazarette Town (in
the Caribbean).
As such, the town council in Lazarette, with the help of other key
stakeholders, has sourced and secured three (3) million dollars of
grant funds from the Caribbean Wellness Community (CWC) for the
development of a mini outdoor recreational park on three (3) acres
of land donated by a benevolent resident of the town.
The park will contain sporting facilities among other recreational
facilities (e.g. walking trails, children playground, tennis court,
basketball court, work out stations, benches, shower facilities,
rest rooms etc.). All major key stakeholders and sponsors have
unanimously agreed that that the facility should cater for
residents of all ages. Additionally, a group of minority
stakeholders has expressed their requirements of having an
eco-friendly and climate resilient facility. The park should be
completed and ready for use by 2022, i.e. the project duration
should not exceed two years.
To ensure that the project is completed on time, within scope and
on budget, the funding agency and the Lazarette Town Council
require that a dedicated and knowledgeable project team is assigned
to the project. CWC has expressed the need for the project
deliverables to be of ‘high’ quality to guarantee stakeholders’
satisfaction and safety. The CWC requires that ‘tight’ procurement
processes should be followed to ensure transparency, accountability
and economy. It is anticipated that most of the goods, works and
services for building the park will be procured from vendors,
suppliers and contractors in the town. In addition, CWC has
detailed the need for both positive and negative projects risk to
be properly managed throughout the project.
In response to CWC implied and expressed requirements, the
Lazarette Town Council has selected and appointed your team to
provide project management services for the Recreational Park
Project. As a proactive team, your team has decided to use ‘best
practices’ in project management to plan project activities and get
approval from key project stakeholders before constructing or
building the facility. Give the type and nature of the project, the
intention is to use a traditional/waterfall approach to project
management activities instead of the largely popular and
contemporary agile methodology used other industries.
Your team understands the value of planning before doing, and the
council’s concerns of not losing the grant funding from CWC. In
addition, your team is keen on building a good reputation in
the
town. With a can do attitude and the need to increase the chances
of the project success, the project management team (your 5-member
group) is determined to ensure that the team utilizes the ‘best
practices’ for planning, executing and controlling this valuable
community based project.
1.Develop a quality management plan to consist of quality
management approach,quality requirements and standard,quality
assurance,quality control and quality control measures.
In: Operations Management
Case – Recreational Park Project
The public has recognized the benefits of recreation and parks as essential to their health and quality of life. A recent survey conducted in 2016 found that the construction of more recreational facilities was a top priority among residents in Lazarette Town (in the Caribbean).
As such, the town council in Lazarette, with the help of other key stakeholders, has sourced and secured three (3) million dollars of grant funds from the Caribbean Wellness Community (CWC) for the development of a mini outdoor recreational park on three (3) acres of land donated by a benevolent resident of the town.
The park will contain sporting facilities among other recreational facilities (e.g. walking trails, children playground, tennis court, basketball court, work out stations, benches, shower facilities, rest rooms etc.). All major key stakeholders and sponsors have unanimously agreed that that the facility should cater for residents of all ages. Additionally, a group of minority stakeholders has expressed their requirements of having an eco-friendly and climate resilient facility. The park should be completed and ready for use by 2022, i.e. the project duration should not exceed two years.
To ensure that the project is completed on time, within scope and on budget, the funding agency and the Lazarette Town Council require that a dedicated and knowledgeable project team is assigned to the project. CWC has expressed the need for the project deliverables to be of ‘high’ quality to guarantee stakeholders’ satisfaction and safety. The CWC requires that ‘tight’ procurement processes should be followed to ensure transparency, accountability and economy. It is anticipated that most of the goods, works and services for building the park will be procured from vendors, suppliers and contractors in the town. In addition, CWC has detailed the need for both positive and negative projects risk to be properly managed throughout the project.
In response to CWC implied and expressed requirements, the Lazarette Town Council has selected and appointed your team to provide project management services for the Recreational Park Project. As a proactive team, your team has decided to use ‘best practices’ in project management to plan project activities and get approval from key project stakeholders before constructing or building the facility. Give the type and nature of the project, the intention is to use a traditional/waterfall approach to project management activities instead of the largely popular and contemporary agile methodology used other industries.
Your team understands the value of planning before doing, and the council’s concerns of not losing the grant funding from CWC. In addition, your team is keen on building a good reputation in the
town. With a can do attitude and the need to increase the chances of the project success, the project management team (your 5-member group) is determined to ensure that the team utilizes the ‘best practices’ for planning, executing and controlling this valuable community based project.
1. Propose an initial risk register for the Recreational Park Project. The risk register should contain a minimum of 10 risks.
* Use template of your choice fo
In: Operations Management