Find the mean and standard deviation of the times and icicle lengths for the data on run 8903 in data data234.dat. Find the correlation between the two variables. Use these five numbers to find the equation of the regression line for predicting length from time. Use the same five numbers to find the equation of the regression line for predicting the time an icicle has been growing from its length. (Round your answers to three decimal places.)

time    length
10           2.5
20           1.9
30           3.8
40           5.4
50           6.4
60          10.1
70          9.5
80          12.1
90          14.1
100         13.9
110         18.9
120         19.1
130         21.5
140         23.3
150         26.5
160         28.2
170         29.6
180         28.8

A project will cost $1,000 today and will pay back $100 one year from today (t=1), $200 two years from today (t=2), $500 three years from today (t=3) and $1,000 four years from today (t=4). If the required rate of return is 7%, answer question Q1 to Q5.

Q1: What is the present value of the future cashflow?

a)1578.62

b)1439.19

c)1374.25

d)1664.83

Q2: What is the NPV of the project

a)439.19

b)1439.19

c)578.62

d)1374.25

Q3: What is the IRR of the project?

a)21.75%

b)15.39%

c)16.84%

d)19.77%

Q4: What is the payback period of the project?

a)3.5

b)3.2

c)3.8

d)4

Q5: How long is the Discounted Payback Period

a)3.28

b)3.42

c)4

d)2.77

J&R Construction Company is an international conglomerate with a real estate division that owns the right to erect an office building on a parcel of land in downtown Sacramento over the next year. This building would cost $35 million to construct. Due to low demand for office space in the downtown area, such a building is worth approximately $32.5 million today. If demand increases, the building would be worth $38 million a year from today. If demand decreases, the same office building would be worth only $30 million in a year. The company can borrow and lend at the risk-free annual effective rate of 3.8 percent. A local competitor in the real estate business has recently offered $816,000 for the right to build an office building on the land. What is the value of the office building today? Use the two-state model to value the real option.

Time    Cash flow

0    -165,000

1 56,500

2    67,400

3    45,600

4 29,800

5 7,500

Suppose your firm is considering investing in Project K with the cash flows shown in the table. Assume that the required rate of return on projects of this risk class is 7.5 percent, and that the maximum allowable payback and discounted payback statistics for the project are 3.0 and 3.6 years, respectively. Which of the following statements is (are) correct?

(x) If you use the payback decision rule to evaluate this project then you accept the project since the payback period is 2.9 years.

(y) If you use the discounted payback decision rule to evaluate this project then you reject the project since the discounted payback period is 3.8 years. (z) The NPV of this project is more than $10,000. If you use the NPV decision rule to evaluate this project; then it should be accepted.

The equivalent synchronous impedance of a 25kVA, 400V
three-phase Y-connected synchronous generator is 0.05 + j1.6 ohm.
When the rated voltage was output under no load, the rated current flowed by connecting the load.
Part a)
If the load power factor is 0.8, 1.0 lagging, and 0.8 lagging,
calculate the pull-up voltage, load angle, and voltage fluctuation rate for each.
Ignore the magnetic saturation.

Part b)
If the power factor is 0.8, 1.0 lagging and 0.8 leading,
when the rated current flows through the generator at the rated output voltage,
calculate the internal induced power, load angle, and voltage dynamic for each.

Answer
Part a)
190.4V, 11.26 deg, 21.3%
221.8V, 14.47 deg, 4.1%
259.2V, 11.82 deg, -11.3%

Part b)
270.8V, 9.59 deg, 17.5%
239.8V, 13.93 deg, 3.8%
203.3V, 13.45 deg -12.0%

Suppose we have two sets of prediction for the inflation rate for next year: one from a random sample of Fortune 500 firms and another from a random sample of university economists. At 0.05 level can it be claimed that on the average university educators are predicting a higher inflation rate for next year than the major private businesses?

1. Formulate the hypothesis (H₀ and H_a) and describe each in nontechnical language and in mathematical form. (5 pts)

2. Show the mean, rejection region, and the critical value(s) on the following graph. (6 pts)

Show the equation for computing the standard error.

3. What is your decision and why? (4 pts.)

4. Provide a conclusion in non-technical language (5 pts)

Backcountry Adventures is a Colorado-based outdoor travel agent that operates a series of backcountry huts. Currently, the value of the firm is $3.8 million. But profits will depend on the amount of snowfall: If it is good year, the firm will be worth $5.2 million, and if it is a bad year it will be worth $2.5 million. Suppose managers always keep the debt to equity ratio of the firm at 30%, and the debt is riskless.

a. What is the initial amount of debt?
b. Calculate the percentage change in the value of the firm, its equity and its debt once the level of snowfall is revealed, but before the firm adjusts the debt level to achieve its target debt to equity ratio.
c. Calculate the percentage change in the value of outstanding debt once the firm adjusts to its target debt-equity ratio.
d. What does this imply about the riskiness of the firm's tax shields. Explain.

1- Block 1 (mass 2.0 kg) is moving to right at speed of 5.0 m/s. It collides with block 2 (mass 3.0 kg) that is moving to the right at speed of 3.0 m/s.

a) What is the speed of the blocks if the collision is completely inelastic? How much kinetic energy is lost? (3.8 m/s, 2.4 J)

b) What is the final speed of the blocks if the collision is elastic? (v1 = 2.6 m/s, v2 = 4.6 m/s)

2 - A solid uniform sphere of mass 5.0 kg and diameter 40 cm, rolls down a hill without slipping. If the velocity of the sphere downhill is 2.0 m/s.

a) what is the height of the hill? (29 cm)

b) What is the angular momentum of the sphere downhill? (0.8 kg*m/s)

I know the answers I just need to know how to get to those answers!

True/False

1. _________Acute laryngotracheobronchitis may be suspected if a child develops hoarseness, a barking cough, an elevated temperature, difficult breathing, and cyanosis.

2. _________The diet for the child diagnosed with cystic fibrosis should be high in protein and fats, and restricted in carbohydrates.

3. _________The skin test that deposits purified protein derivative intradermally is done to detect tuberculosis.

4. _________Bronchodilators are used for quick relief of acute exacerbations of asthma symptoms.

5. _________The most common complication of acute nasopharyngitis (common cold) is bacterial pneumonia.

Fill-in-the-Blank

1. The major organs affected by cystic fibrosis are the lungs, ____________________________, and liver.

2. Following a tonsillectomy, bleeding is most often a concern within the first _______________________ hours after surgery and days 5 and 7 after surgery.

3. A(n) ____________________________________ attack can be triggered by a hypersensitive response to allergens; foods such as chocolate, milk, eggs, nuts, and grains; exercise; or exposure to cold.

4. In about 50% of the cases of acute bronchiolitis the causative agent is respiratory syncytial

__________________________________.

5. _____________________________ is the sound of expired air being pushed through obstructed bronchioles and occurs as a clinical manifestation in asthma.

Bob Jones, a 60 year old with hypertension has been prescribed prazosin for hypertension. Bob says he does “not feel all that bad” and does not want to start medication although his systolic blood pressure has been greater than 190 and diastolic greater than 110 on the last three readings.

1)      How would you respond to Bob in the most therapeutic manner?

2)      Bob and his wife both ask about the side effects associated with the new medication. What should you teach them?

3)      What assessment data is critical to collect prior to collect prior to the first dose?

4)      What ongoing assessments are indicated?

5)      What are the priority collaborative problems that you must consider for patients taking prazosin?

6)      Discuss nursing interventions and rationales for patients receiving adrenergic blocking agents.

7)      What are the most common adverse reactions, drug-to-drug, drug-food/herbal interactions with prazosin?