Better Mousetraps has developed a new trap. It can go into production for an initial investment in equipment of $6.3 million. The equipment will be depreciated straight - line over 6 years to a value of zero, but, in fact, it can be sold after 6 years for $549,000. The firm believes that working capital at each date must be maintained at a level of 10% of next year’s forecast sales. The firm estimates production costs equal to $1.60 per trap and believes that the traps can be sold for $6 each. Sales forecasts are given in the following table. The project will come to an end in 6 years, when the trap becomes technologically obsolete. The firm’s tax bracket is 35%, and the required rate of return on the project is 10%.

Suppose the firm can cut its requirements for working capital in half by using better inventory control systems. By how much will this increase project NPV? (Enter your answer in millions rounded to 4 decimal places.)

Better Mousetraps has developed a new trap. It can go into production for an initial investment in equipment of $6.3 million. The equipment will be depreciated straight - line over 6 years to a value of zero, but, in fact, it can be sold after 6 years for $549,000. The firm believes that working capital at each date must be maintained at a level of 10% of next year’s forecast sales. The firm estimates production costs equal to $1.60 per trap and believes that the traps can be sold for $6 each. Sales forecasts are given in the following table. The project will come to an end in 6 years, when the trap becomes technologically obsolete. The firm’s tax bracket is 35%, and the required rate of return on the project is 10%.

Suppose the firm can cut its requirements for working capital in half by using better inventory control systems. By how much will this increase project NPV? (Enter your answer in millions rounded to 4 decimal places.)

Change in NPV?

a) Calculate the gross vehicle weight (GVW) (kg)

(Answer in kg)

b) Calculate maximum tractive force (kN) on road at driving wheels when loaded

(Answer in kN)

c) Calculate the effective grade % on the haul road.

d) Calculate total resistance (kg) while hauling.

e) Calculate the total cycle time (minutes).

f) Calculate production rate, in Bank m³/hr.

A patient is admitted to the ICU with severe necrotizing pancreatitis. A few hours after admission, he developed increasing oxygen requirements and was intubated for hypoxemic respiratory failure. Initially, his oxygen saturation improved to the mid-90% range on an FiO₂ of 0.5 (50%), but in the past 2 hours, the nurse has had to increase the FiO₂ back to 0.7 (70%) and his SaO₂ is still in the lower 90% range. The patient remains on a PEEP of 5 cmH₂O. The respiratory therapist drew an ABG which shows pH 7.35, PCO₂ 38, PO₂ 60, HCO₃ - 22 on an FiO₂ of 0.8 (80%). The patient's repeat chest x-ray is shown a "ground glass appearance". An echocardiogram performed earlier in the day revealed normal left ventricular function.

How do you explain his worsening oxygenation status?

What can you do to improve his oxygenation?

What other changes should you consider making in the ventilator settings?

If his oxygen saturation fails to improve despite being on high levels of support (i.e., FiO₂ of 1.0 and 20 cm H₂O of PEEP), what other options do you have for improving his oxygenation?

2. Geniue Antique Egyptian Artifacts, Inc. produces three varieties of antique artifacts for sale to tourists: statuettes, lamps, and urns. All of the artifacts include special clay. A statuette requires 13 ounces of clay, a lamp uses 18 ounces, and each urn takes 17 ounces. Existing capacity of clay is 28,000 ounces per month. A special material is also used to produce the three artifacts, with each statuette needing 0.8 ounces, each lamp 0.7 ounces, and a typical urn requiring 1.0 ounces. The company has inventory of 1,200 ounces of special material per month. The owner of the company wishes to maintain a balanced marketing program, and has ordered that production of statuettes to be limited to 275. The overall per unit profit for artifacts is the following: $199 per statuette, $99 per lamp, and $145 per urn. The owner wants to know how much of each type of antique to fabricate monthly in order to optimize profit.

a. What are the objective function, decision variables, and constraints for this optimization problem?

b. Develop an Excel spreadsheet and use Excel-Solver to find an optimal solution for this problem.

c. Describe the optimal solution in words.

Use the following information to answer questions 26 to 29. In October 1998, 30% of employed adults were satisfied with their chances for promotion. A human resource manager wants to determine if this percentage has changed significantly since then. She randomly selects 280 employed adults and find that 112 of them are completely satisfied with their chances for promotion. Is there sufficient evidence to conclude that the percentage of employed adults satisfied with their chances for promotion is significantly different from the percentage in 1998, at the α = 0.1 level of significance?

The null and alternative hypothesis are: A. H0: p = 0.3 versus H1: p ≠ 0.3 B. H0: p = 0.4 versus H1: p ≠ 0.4 C. H0: p = 0.3 versus H1: p < 0.3 D. H0: p = 0.3 versus H1: p > 0.3 5 puntos PREGUNTA

27 The t statistic is equal to: A. z = 1.65 B. z = -1.65 C. t = 3.65 D. t = -3.65

PREGUNTA 28 The critical value is equal to: A. t = ± 3.65 B. z = ± 1.65 C. z = 3.65 D. z = -1.65

PREGUNTA 29 The conclusion is to Reject the Null Hypothesis Verdadero o Falso

4-2 Short Paper: Major Contributions of Minority Groups Assignment Task: Submit to complete this assignment Trace some of the major contributions of an ethnic or "minority" group to U.S. culture, for example, to music, the arts, dance, or theater. There are many other possibilities! Develop your composition based on an area of interest to you in the arts.

A Theater has n numbered seats, and n tickets are distributed among n persons. Compute the probability that

(a) exactly two persons will be seated at seats corresponding to their ticket numbers if all the seats are occupied at random.

(b) at least two persons will be seated at seats corresponding to their ticket numbers if all the seats are occupied at random.