On February 27, 2013, the City Council of Cincinnati (OH) passed an ordinance requiring photoelectric smoke detectors in all rental properties. However, over 5 years later, the city’s fire department representatives are concerned that not all properties are adhering to the ordinance. Suppose the population proportion of rental properties in Cincinnati having photoelectric smoke detectors is 0.80 (i.e., 80 percent).
(a) If a sample of 6 rental properties is selected at random, what is the probability at least 5 properties have photoelectric smoke detectors installed?
(b) What three Bernoulli trial assumptions did you make in performing the calculation in part (a)?
(c) Instead of sampling a fixed number of rental properties, suppose rental properties were inspected until the third one without photoelectric smoke detectors was found. Under the assumptions outlined in part (b), please write the distribution of the number of rental properties that would be inspected. Graph the side by side pdf and cdf plots to present the distribution with proper subtitles.
(d) Calculate the probability that the number of rental properties inspected exceeds 10 until the third one was found without photoelectric smoke detectors.
In: Statistics and Probability
Create a box plot for the data given in Problem. 18, 27, 34, 52, 54, 59, 61, 68, 78, 78, 82, 82, 85, 87, 91, 93, 100
In: Statistics and Probability
Case 1 – Working Capital (30%)
Masonry Ltd estimates that it takes the company 27 days on average to pay off its suppliers. It also knows that it has dyas’ sales in inventory of 64 days days’ sales outstanding of 32 days.
a) If the cash conversion cycle of the industry, on average, is 75 days, does Masonry manage their working capital good? Explain your answer by comparing the cash conversion cycle of Masonry’s and compare it with the industry (10%)
b) Assume you are the CFO of Mansory, explain your strategy to improve Mansory’s cash conversion cycle! (10%)
c) Explain the implemented strategy to improve cash conversion cycle in your current company you work with! (10%)
In: Finance
You find a certain stock that had returns of 14 percent, -27 percent, 19 percent, and 21 percent for four of the last five years, respectively. What is the average return of the stock over this period? What is the standard deviation of the stock's returns?
In: Accounting
BJ is an 8mos old Caucasian infant. He was born at 27 wk gestation weighing 1.2 kg to an 18yo single mother. His mother brings him into the office today for his routine immunizations. She is teary-eyed as she gives the history to DR. BJ continues to have significant head lag, never has rolled over and is unable to sit up. Recently, mom has noticed feeding difficulties during meals. When BJ's diaper is being changed, mom has noticed increased stiffening and scissoring of his legs at times. On physical exam, Dr. Feelgood noticed persistence of primitive reflexes. BJ continues to have a tonic neck reflex, and a persistent Moro reflex. BJ has not met any developmental milestones. Dr. Feelgood referred BJ and family for early intervention.
1. What fine and gross motor skills should an 8mos old achieve?
2. What suggestions can you give mom regarding feeding BJ?
BJ is now 14mos old and weighs 8 kg and has been diagnosed with spastic cerebral palsy. He is unable to meet any of his developmental milestones. He continues to go to the multidisciplinary CP clinic. His spasticity continues to increase and the clinic recommended that a baclofen pump be inserted intrathecally. BJ has also developed seizures.
3. What fine and gross motor skills should a 14mos old achieve?
4. What is a baclofen pump? How does the drug baclofen help reduce spasticity?
5. What other drugs are given to reduce spasticity?
6. BJ has been prescribed Tegretol for his seizures. The drug book states 10 - 20 mg/kg/day divided twice a day. The physician orders Tegretol 70mg BID. Is this safe?
7. The early intervention clinic is multidisciplinary and offers many services. What providers and services would be useful for a child with cerebral palsy?
8. What are mom's unique psychosocial needs as an 18yo single mother of a child with a chronic disability. What are some interventions that could better support mom?
In: Nursing
Mr. Vaughn, a 27-year-old man, is hiking in the woods near his home in the American Midwest. He feels a sharp stinging sensation on his left ankle. As he looks down he sees a dark colored snake moving off the trail into the woods. Mr. Vaughn calls the ED at the local hospital. He tells the nurse what has happened. What should the nurse tell Mr. Vaughn? What actions should the nurse take at this time? Mr. Vaughn is brought to the ED via the paramedics along with a park ranger. The park ranger used the patient's description of the snake and determined that it was a pit viper. What is the priority of care for Mr. Vaughn? When the Mr. Vaughn's wounds are reassessed, the nurse notes heavy bleeding from the puncture site. What should the nurse's next actions be? Why?
In: Nursing
Newton's law of gravity was inconsistent with Einstein's special relativity because
Question 27 options:
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the distance, and thus the force, depends on the reference frame chosen |
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time dilation slows the apparent acceleration, reducing the force |
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mass, and thus the force, depends on the reference frame chosen |
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Newton didn't know about Einstein |
In: Physics
a. Alice is 27-year old female who is five months pregnant. She is undergoing a dermatological procedure requiring local anaesthesia. Her medical history reports the following: allergic to eggs; taking ranitidine for gastric reflux; taking pyridoxine and doxylamine for nausea; history of scoline apnoea, thrombocytopaenia, and gestational diabetes. Her doctor has decided to use tetracaine with felypressin. Discuss the appropriateness of the anaesthetic combination.
b. During a routine check-up at her obstetrician, Alice is made aware that her blood pressure is 145/98 mm/Hg. Follow-up measurements are done, and her blood pressure remains high. Her doctor wishes to prescribe either carvedilol, valsartan, hydralazine, or α-methyldopa as an anti-hypertensive. Given her presentation, i) suggest an appropriate anti-hypertensive to use from those mentioned, ii) justify your selection by referring to the inappropriateness of the other options, and iii) explain how your suggested drug reduces blood pressure.
In: Nursing
26. Describe the benefit provisions of a typical sick-leave plan.
27. Which of the following statements concerning a deferred annuity is (are) correct?
I. Deferred annuities must be purchased with periodic premiums paid over a period of time.
II. Because of the delay feature, a deferred annuity is unsuitable as a vehicle to accumulate a sum for old age.
A. I only
B. II only
C. Both I and II
D. Neither I nor II
28. Which of the following statements concerning a joint-and-last survivor annuity is (are) correct?
I. It must be sold as an immediate annuity.
II. Annuity payments cease upon the first death of an annuitant.
A. I only
B. II only
C. Both I and II
D. Neither I nor II
In: Economics
Mauro Products distributes a single product, a woven basket whose selling price is $27 and whose variable expense is $19.17 per unit. The company’s monthly fixed expense is $10,962.
Required:
1. Solve for the company’s break-even point in unit sales using the equation method. (Do not round your intermediate calculations.)
2. Solve for the company’s break-even point in dollar sales using the equation method and the CM ratio. (Do not round intermediate calculations. Round "CM ratio percent" to nearest whole percent.)
3. Solve for the company’s break-even point in unit sales using the formula method. (Do not round your intermediate calculations.)
4. Solve for the company’s break-even point in dollar sales using formula method and the CM ratio. (Do not round intermediate calculations. Round "CM ratio percent" to nearest whole percent.)
In: Accounting