A confidence interval, at the 95% confidence level, will be used to answer the question, "What is the mean annual salary (in US dollars) of a Tesla car owner?" Data was collected from 36 Tesla owners across the US. The mean annual salary of those 36 Tesla owners was $254000. The standard deviation of ALL Tesla owners is known to be $1057.
a) The value at the center of the confidence interval represents what quantity? Choose an option from the list and type its corresponding letter in the box.
Answer for (a):
b) Is z* or t* used when building this confidence interval? Choose an option from the list and type its corresponding letter (A or B) in the box.
Answer for (b):
A confidence interval, at the 95% confidence level, will be used to answer the question, "What is the mean annual salary (in US dollars) of a Tesla car owner?" Data was collected from 36 Tesla owners across the US. The mean annual salary of those 36 Tesla owners was $254000. The standard deviation of ALL Tesla owners is known to be $1057.
a) The value at the center of the confidence interval represents what quantity? Choose an option from the list and type its corresponding letter in the box.
Answer for (a):
b) Is z* or t* used when building this confidence interval? Choose an option from the list and type its corresponding letter (A or B) in the box.
Answer for (b):
c) Determine the value of the letter indicated in part (b) using one of the following tables: normal table, t table. Type the number, recorded to 3 decimals, in the box.
Answers for (c):
d) What are the lower and upper bounds of this confidence interval? Type the numbers, rounded to 2 decimals, in their corresponding boxes.
Answers for (d): Lower Bound - ? Upper Bound - ?
e) If the sample size is decreased to 20 Tesla owners, what would happen to the confidence interval? Choose an option and write its corresponding letter the blank below.
Answer for (e): ?
In: Statistics and Probability
In: Accounting
Would the following groups benefit if the US dollar appreciated? Yes or No. Explain.
Dutch pension funds holding US government bonds.
US manufacturing industries.
Australian tourists planning a trip to the US.
An American firm trying to purchase property overseas.
American tourists planning a trip to London.
In: Economics
The start-up ecosystem in Beirut is an early to middle
stage ecosystems, that has passed its early growth phase but is
still far from maturity. On average, each year, 12 more start-ups
are created than in the previous year, resulting in a 24% growth
rate in start-up creation since 2009. A new IT-based start-up will
start operating in Beirut beginning July 2020. KM seems to be part
of their main business objectives as they are incorporating it in
their mission and vision statements. The co-founders believe that
knowledge is the main resource a business can possess. Hence, they
plan to invest largely in KM systems starting the second year. The
value of investors in the startup ecosystem in Beirut extends
beyond the money they provide. They also act as mentors supporting
the needs of the entrepreneurs, trying to fill the gaps start-ups
have whether in staff, research, and infrastructure. As the new
startup is now in the process of building prototypes of drones that
can predict the speed of hurricanes, their investors have suggested
adopting a KM system that highlights discrepancies between the
observed and predicted speed of hurricanes. More than that, they
believe it might be useful to analyze the effectiveness of the
developed drones by comparing it to sensory equipment used in
hospitals. This has been suggested due to the shortage of
experience in their domain. In fact, the founder suggested that
building a sort of repository for cases they encounter could prove
to be highly essential to build and sustain expertise. This
repository can either be added to a system they might purchase in
the future, or can be employed by the start-up as an informal
approach for knowledge application.
1. Infer two KM systems the start-up plans to adopt starting in the
second year of their operation. Explain the systems. (20
points)
2. Explain a methodology the start-up can apply to build and
sustain their repository of cases.
(20 points)
3. Explain through the use of examples the impact of KM systems
they plan to adopt on processes and people in the start-up. Explain
two impacts for each (i.e. two impacts on processes and two impact
on people). (30 points)
4. Suggest two mechanisms and two technologies that can facilitate
the KM systems they plan to adopt. Justify your answers. (30
points)
In: Economics
We have reviewed the topic of Goodwill on the Balance Sheet which is created when a company acquires another and pays more than the market value of the acquired company's net assets.
What I want you to address in this discussion board are the following:
A. What type of "event" results in goodwill being recorded on a company's balance sheet?
B. How is goodwill evaluated to determine whether this specific asset is impaired? If it is deemed to be impaired, what actions does a company need to take?
C. How do you view goodwill on the balance sheet - specifically, if certain levels of it would cause concern, identify what level of goodwill would cause you concern and why?
D. If it would not concern you regardless of the amount of goodwill on the balance sheet, explain why.
In: Accounting
An assembly operation at a software company currently requires $96,000 per year in labor costs. A robot can be purchased and installed to automate this operation, and the robot will cost $192,000 with no MV at the end of its 10-year life. The robot, if acquired, will be depreciated using SL depreciation to a terminal BV of zero after 10 years. Maintenance and operation expenses of the robot are estimated to be $70,000per year. The company has an effective income tax rate of 24%. Invested capital must earn at least 6% after income taxes are taken into account.
a. Use the IRR method to determine if the robot is a justifiable investment.
b. If MACRS (seven-year recovery period) had been used in Part (a), would the after-tax IRR be lower or higher than your answer to Part (a)?
In: Accounting
The CEO of Manitoba Health does not want the variance of waiting times at the emergency in Manitoba's hospital longer than 0.25 0.25 square hours. A random sample of 25 25 patients taken from Health Science Center gave the variance of the waiting time equal to 0.49 0.49 square hours. Assume that the waiting times for all patients are normally distributed. (a) Test whether the standard deviation of the waiting times for all patients at HSC is greater than 0.5 0.5 hours. Use α=0.05 α=0.05 . (b) Calculate a 95% 95% confidence interval for the population standard deviation.
In: Statistics and Probability
Read the article “Data is Worthless if you don’t Communicate it”Preview the document from the HBR Blog. This article lists out six critical questions for the data analyst/user/presenter. Based on what you have learned about inventory management, please create a hypothetical scenario in which you answer those questions for the CEO of your firm. Not only do we need to communicate big data to our management, but we need to understand what it is worth, what value it brings to the enterprise. Please watch this TED talk on how to monetize big data.
In: Operations Management
You are in charge of a IT for an large state-wide electric utility. The CEO has asked you specifically for guidance on what you consider the greatest "cyber terrorism" threats that the utility faces.
Please provide the top 3-4 threats, and justification/assessment for each.
You can be as specific or general as you want concerning the threats. Separately, the threats could be from state, non-state, specific technologies, security gaps, etc.
I suggest you take time and utilize outside sources to answer this question
Show me what you have learned about the threats we face.
In: Psychology
"Apple CEO wants to launch another high range phone at a price point of 30% more than the current price. As a data scientist what will be your suggestion to him to ensure that sales will not be impacted by price spike?
Guidelines :
In: Math