Case 3: Recently, an association that represented police in New Jersey complained that the incidence of cancer was unusually high among police officers who used radar guns in tracking the speed of drivers. The association brought suit against the state, claiming that those officers who used these radar guns had an incidence of cancer 18 percent higher than a comparable group of government workers from the state park service who were randomly selected for comparison purposes. The comparison sample and the police officers were matched on educational level, age, gender, and years of service. The sample was large: 283 police officers and 231 park workers.

Was the case justified? Why or why not? (Be sure to support your answer with reference to the strengths and weaknesses of the design, and consider possible confounds.)

What kind of study is this? What are the problems associated with this kind of study?

How would you improve the study?

You travel to one of the shops where you park your car beside a Ferrari Testa Rossa in the store car park, and
enter the store to find an immaculately dressed lady who runs the store on her own. The dresses sold in the
store retail for several thousand dollars an item. On chatting to the lady, you discover the Ferrari is her
“getting to work” car. You note that there is no cash register and are told that given the value of the dresses,
only a few sales a day are processed, and these are either by EFTPOS using a single machine, or cash, which
is immediately banked. Customers are given handwritten detailed receipts, which do not carry a serial
number.
Required:
Given the above situation critically analyse the sales process and describe in detail what management
assertions may be at risk relative to sales. Give full reasons for your choices. In your answer explain what
management assertions are.

A survey found that​ women's heights are normally distributed with mean 62.6 in. and standard deviation 2.1 in. The survey also found that​ men's heights are normally distributed with mean 69.4 in. and standard deviation 3.8 in. Most of the live characters employed at an amusement park have height requirements of a minimum of 57 in. and a maximum of 63 in. Complete parts​ (a) and​ (b) below. a. Find the percentage of men meeting the height requirement. What does the result suggest about the genders of the people who are employed as characters at the amusement​ park? The percentage of men who meet the height requirement is nothing​%. ​(Round to two decimal places as​ needed.) Since most men ▼ meet do not meet the height​ requirement, it is likely that most of the characters are ▼ men. women. b. If the height requirements are changed to exclude only the tallest​ 50% of men and the shortest​ 5% of​ men, what are the new height​ requirements? The new height requirements are a minimum of nothing in. and a maximum of nothing in. ​(Round to one decimal place as​ needed.)

4. Indicate which variable is the independent and dependent for each pair. If either could be the independent, answer “reciprocal.” If the two variables do not seem related, answer “unrelated.”

a) Property inspections completed, number of inspectors

b) Property tax rate, property value

c) Consumption of ice cream in a month, average daily temperature in a month

d) Satisfaction with local services, voting in a local election

e) Work commute time, time of day

f) Merit pay, work productivity

g) Flu cases per capita, average age of population

h) Road miles constructed, number of commuters

i) Husband’s income, wife’s income

j) Visitors to a state park, visitors to a nearby national park

k) Season of the year, number of animals dropped at a shelter

l) Drop-out rate from high school, teenage pregnancy rate

m) Donations to a local ballet, Sales tax rate

Light rays that are near to and parallel to the principle axis are called

paraxial rays.   

parabolic rays.   

paranormal rays.

The far point of the eye decreases to 5 m and near point increases to 1m. Then, Find the power of the lens.

5.17. Consider two undeveloped land sites. At site 1, the highest and best use (HBU) is a warehouse that would cost $1 million to build (exclusive of land cost) and would then generate annual net rents of $150,000, which are expected to grow al 3% per year. At site 2, the HBU is an apartment building that can generate net rents of $800,000, projected to grow at 1% per year, with construction cost of $5 million. Suppose investors buying built properties (that is, properties already developed and in operation) require an initial annual return (in the form of current net income) of 12% minus the expected annual growth rate in the net income, as a percent of the investment cost. For example, they would want an initial yield or cap rate of 9% for the warehouse (12% -- 3% = 9%). Suppose the land value for site | is $1 million and the land value for site 2 is $2 million. On which of these sites (1, 2, both, or neither) is it currently profitable to undertake construction? Show your reasoning.

Rutgers is planning to expand its capacity in athletic centers. They purchased a pretty big piece of land, so space is not really an issue. The options that they have are four, in terms of facilities: basketball, tennis, football, and baseball. A basketball facility is expected to cost 10,000$ and should be used by around 75 people per day. A tennis facility is expected to cost 8,000$ and should be used by around 45 people per day. A football facility is expected to cost 13,000$ and should be used by around 110 people per day. Finally, a baseball facility is expected to cost 11,000$ and should be used by around 80 people per day. Although the planner (you) is free to choose as many facilities per type as he wants, there are some restrictions: football facilities should be no more than 5 and the available budget is 250,000$. The objective is to maximize the daily usage.

At the optimal solution, how many basketball facilities should be built?

A.

None of the above

B.0

C.5

D.13

Allegheny Community Hospital is a nonprofit hospital operated by the county. The hospital’s administrator is considering a proposal to open a new outpatient clinic in the nearby city of New Castle. The administrator has made the following estimates pertinent to the proposal.

1. Construction of the clinic building will cost $640,000 in two equal installments of $320,000, to be paid at the end of 20x0 and 20x1. The clinic will open on January 2, 20x2. All staffing and operating costs begin in 20x2.
2. Equipment for the clinic will cost $55,000, to be paid in December of 20x1.
3. Staffing of the clinic will cost $520,000 per year.
4. Other operating costs at the clinic will be $58,000 per year.
5. Opening the clinic is expected to increase charitable contributions to the hospital by $110,000 per year.
6. The clinic is expected to reduce costs at Allegheny Community Hospital. Annual cost savings at the hospital are projected to be $720,000.
7. A major refurbishment of the clinic is expected to be necessary toward the end of 20x5. This work will cost $85,000.
8. Due to shifting medical needs in the county, the administrator doubts the clinic will be needed after 20x9.
9. The clinic building and equipment could be sold for $110,000 at the end of 20x9.
10. The hospital’s hurdle rate is 12 percent.

Use Appendix A for your reference. (Use appropriate factor(s) from the tables provided.)

Required:

1. 1-3. Fill in the following table to compute the net present value of the proposed outpatient clinic.

2. 4. Should the administrator recommend to the hospital's trustees that the clinic be built

Complete this question by entering your answers in the tabs below.

• Req 1 to 3
• Req 4

Fill in the following table to compute the net present value of the proposed outpatient clinic. (Negative amounts should be indicated by a minus sign. Round your "Discount factors" to 3 decimal places.)

Should the administrator recommend to the hospital's trustees that the clinic be built?