All five members of a project team add 20% to their individual serial activities as a safety margin and submit their time estimates to the project manager. The manager adds the activity length estimates together and adds 20% for his personal safety margin. Then, anticipating a cut by top management, he adds another 20% to his final project estimate. Much to his surprise, top management leaves his project alone. How much of a cushion is now built into the project?

Write a program that removes a target item (a string) from a list of strings, and
that will print out the list without the item. Do not use built-in functions other than
input, print, and append. Instead, you may generate a new list that does not
include the target item and you can use the append() function. Your program
should read two inputs: the target and the list. For example, if the input is “apple”
and the list is [‘berry’, ‘apple’, ‘pear’, ‘orange’], the outputs should be [‘berry’,
‘pear’, ‘orange’] .

Software vulnerabilities in cyberspace can range from the simple outdated security patches on national critical infrastructure systems to poorly designed defense missile control systems. When these industrial control systems, military weapon control systems, or air control transportation systems are designed without security built into the software, their security vulnerabilities are paramount to the national security, economy, and human health.

Do research on the latest prominent software vulnerabilities and share your literature review findings with the class.

1. An airline is considering the purchase of an Airbus A-320neo which offers improved fuel efficiency over the previous generation of narrow-body aircraft. The list price of the A-320 is $110 million, but the airline will receive a 30% discount off of list (typical in the airline industry). The finance department estimates the aircraft will generate a positive net cash flow of $7 million in the first year increasing by 5% annually owing to the aircraft’s fuel efficiency. The airline plans to operate the aircraft for 15 years, then sell it in year 16 for an estimated net cash price of $40 million. The airline targets a return on invested capital of 10% annually (use this rate rather than the interest rate to discount future cash flows). Note: This computation is easiest to perform using MS Excel. Develop a discounted cash flow analysis using Excel and present your recommendations. Copy and paste the Excel spreadsheets into your problem set answers (do not just use Excel’s built-in formulas). There are many Excel formats that could be used, including a built-in template. Here is one format that can be used.

1. You are driving into St. Louis, Missouri, and in the distance you see the famous Gateway-to-the-West arch. This monument rises to a height of 192 m. You estimate your line of sight with the top of the arch to be 6.83 ° above the horizontal. Approximately how far (in kilometers) are you from the base of the arch?

Numbers ______ Units_____

2. A highway is to be built between two towns, one of which lies 44.0 km south and 76.9 km west of the other. (a) What is the shortest length of highway that can be built between the two towns, and (b) at what angle would this highway be directed, as a positive angle with respect to due west?

A. Numbers _____ Units____

B. Numbers_______ units____

3.

Vector A→ has a magnitude of 79 units and points due west, while vector B→ has the same magnitude and points due south. Find the magnitude and direction of (a) A→+B→ and (b) A→-B→. Specify the directions relative to due west.

(a) Magnitude and direction of A→+B→ = ______ and __________

(b) Magnitude and direction of A→-B→ =  and ^o  north of west or south of west?

4.

A force vector has a magnitude of 584 newtons and points at an angle of 40^o below the positive x axis. What are (a) the x scalar component and (b) the y scalar component of the vector?

(a)  F_x = Number  ______ Units_____

(b)  F_y = Number  Units _______

Here is another infectious disease model. Once a person becomes infected, the time X, in days, until the person becomes infectious (can pass on the disease) can be modeled as a Weibull random variable with density function

  

f(x,α,β) = (α/β^α)x^α−1e^−(x/β)α

for 0 ≤ x ≤ ∞ and 0 otherwise with α = 3.7 and β = 7.1

α is the shape parameter and β is the scale parameter. Hint: Solve this with the built-in R functions for the Weibull distribution (dweibull(),pweibull(), qweibull()) not f as defined above. Otherwise you may get intermediate values too large to use. For a) and b) the text (and notes) give formulas for the answers. You can calculate from these formulas. Note that these formulas use the gamma function. Γ(α) is the gamma function. In R, there is a built-in function gamma() which calculates this.
a) What is the expected value of X?

b) What is the variance of X?

c) What is the standard deviation of X?

d) What is the probability that X is larger than its expected value?

e) What is the probability that X is > 2?

f) What is the probability that X is > 4?

g) What is the probability that X > 4 given that X > 2?

h) Calculate the 70th percentile of X

Here is another infectious disease model. Once a person becomes infected, the time X, in days, until the person becomes infectious (can pass on the disease) can be modeled as a Weibull random variable with density function

  

f(x,α,β) = (α/β^α)x^α−1e^−(x/β)α

for 0 ≤ x ≤ ∞ and 0 otherwise with α = 3.7 and β = 7.1

α is the shape parameter and β is the scale parameter. Hint: Solve this with the built-in R functions for the Weibull distribution (dweibull(),pweibull(), qweibull()) not f as defined above. Otherwise you may get intermediate values too large to use. For a) and b) the text (and notes) give formulas for the answers. You can calculate from these formulas. Note that these formulas use the gamma function. Γ(α) is the gamma function. In R, there is a built-in function gamma() which calculates this.
a) What is the expected value of X?

b) What is the variance of X?

c) What is the standard deviation of X?

d) What is the probability that X is larger than its expected value?

e) What is the probability that X is > 2?

f) What is the probability that X is > 4?

g) What is the probability that X > 4 given that X > 2?

h) Calculate the 70th percentile of X

This question demonstrates the use of inheritance and polymorphism.
Design a Ship class that has the following members:
• A field for the name of the ship (a string).
• A field for the year that the ship was built (a string).
• A constructor and appropriate accessors and mutators.
• A toString method that overrides the toString method in the Object class. The Ship class
toString method should display the ship’s name and the year it was built.
Design a CruiseShip class that extends the Ship class. The CruiseShip class should have the following members:
• A field for the maximum number of passengers (an int).
• A constructor and appropriate accessors and mutators.
• A toString method that overrides the toString method in the base class. The CruiseShip class’s
toString method should display only the ship’s name and the maximum number of passengers.
Design a CargoShip class that extends the Ship class. The CargoShip class should have the following members:
• A field for the cargo capacity in tonnage (an int).
• A constructor and appropriate accessors and mutators.
• A toString method that overrides the toString method in the base class. The CargoShip class’s
toString method should display only the ship’s name and the ship’s cargo capacity.
Demonstrate the classes in a program that has a Ship array. Assign various Ship, CruiseShip, and CargoShip objects to the array elements. The program should then step through the array and print each object.

PLEASE DO THE QUESTION IN A SIMPLER WAY

finish the java programming

Create a new class named MyCharacterListTools that provides the API shown below.

This class does not need a constructor nor will any user-defined constructor be called by the

provided code in MainClassQ1.java.

◦ MyLinkedList createCharacterList(String str) – This method is to

return a MyLinkedList whose data items are the characters of str. All of the

characters must appear in the list and in the same order as they are given in str.

◦ void removeNonLetters(MyLinkedList list) – This method is to remove

from the list any spaces, numbers and punctuation characters (this is to be done inplace).

Letters of the alphabet are to be left in the list in the same order they were given.

For example, if the list contained {H_e_l_l_o_ _W_o_r_l_d_!} then after calling this

function, the list would hold {H_e_l_l_o_W_o_r_l_d}. You may use the built-in Java

static method Character.isLetter(char ch) to test whether the list items are

letters.

◦ boolean testEquality(MyLinkedList l1, MyLinkedList l2) – This

method is to compare two MyLinkedLists for equality. Two lists are considered

equal if their contents are the same and in the same order. Letter case should not be

observed (i.e. 'A' is equal to 'a', 'B' is equal to 'b', etc...). If the two lists are equal then

return true. Return false otherwise. The static built-in Java methods

Character.toLowerCase(char ch) and Character.toUpperCase(char

ch) may be used in this method.

Northwood Company manufactures basketballs. The company has a ball that sells for $25. At present, the ball is manufactured in a small plant that relies heavily on direct labor workers. Thus, variable expenses are high, totaling $15.00 per ball, of which 60% is direct labor cost. Last year, the company sold 40,000 of these balls, with the following results:

Sales (40,000 balls) $1,000,000

Variable expenses 600,000

Contribution margin 400,000

Fixed expenses 265,000

Net operating income $135,000

2. Due to an increase in labor rates, the company estimates that next year's variable expenses will increase by $3.00 per ball. If this change takes place and the selling price per ball remains constant at $25.00, what will be next year's CM ratio and the break-even point in balls?

3. Refer to the data in (2) above. If the expected change in variable expenses takes place, how many balls will have to be sold next year to earn the same net operating income, $135,000, as last year?

4. Refer again to the data in (2) above. The president feels that the company must raise the selling price of its basketballs. If Northwood Company wants to maintain the same CM ratio as last year (as computed in requirement 1a), what selling price per ball must it charge next year to cover the increased labor costs?

5. Refer to the original data. The company is discussing the construction of a new, automated manufacturing plant. The new plant would slash variable expenses per ball by 40.00%, but it would cause fixed expenses per year to double. If the new plant is built, what would be the company’s new CM ratio and new break-even point in balls?

6. Refer to the data in (5) above. a. If the new plant is built, how many balls will have to be sold next year to earn the same net operating income, $135,000, as last year?

b. Assume the new plant is built and that next year the company manufactures and sells 40,000 balls (the same number as sold last year). Prepare a contribution format income statement and Compute the degree of operating leverage.