When forecasting the number of infected people from COVID-19, what kind of forecasting model you think would be appropriate? For example, exponential smoothing, linear trend, or moving average. Please choose one or more and elaborate the reasons that you think your selected forecasting model is appropriate.

Finally, what is your forecasted number of infected people from COVID-19 based on your selected forecasting model? Please explain your reasons / procedures to get your forecasted number.

1. Ventilation refers to breathing. Explain the events that cause us to inhale. Include any relevant laws, the role of the pleurae, any muscles that play a role in quiet inspiration, and the collection of neurons in the brain that directly influences the rate and depth of breathing.

This document describes a computer program you must write in Python and submit to Gradescope. For this project, the program will simulate the operation of a vending machine that sells snacks, accepting coins and dispensing products and change. In an actual vending machine, a program running on an embedded computer accepts input from buttons (e.g. a numeric keypad) and devices such as coin acceptors, and its output consists of signals that control a display, actuate motors to dispense products, etc.. However, for this project you will build a simulation where all of the necessary input signals are replaced by keyboard input from a user, and all output signals and actions are indicated by printing text to the terminal. 2. PREVIEW Here is a sample session of using the kind of vending machine simulator you are going to write. This example is meant to convey the general idea. A longer sample input and output for the program can be found in Section 7. Red boxes indicate keyboard input from the user. CREDIT : $0 .00 > inventory 0 Nutrition nuggets $1 .00 (5 available ) 1 Honey nutrition nuggets $1 .20 (5 available ) 2 Almonds $18 .00 (4 available ) 3 Nutrition nugget minis $0 .70 (10 available ) 4 A carrot $4 .00 (5 available ) 5 Pretzels $1 .25 (8 available ) CREDIT : $0 .00 > 3 MSG : Insufficient credit CREDIT : $0 .00 > quarter CREDIT : $0 .25 > quarter CREDIT : $0 .50 > quarter CREDIT : $0 .75 > 3 VEND : Nutrition nugget minis RETURN : nickel CREDIT : $0 .00 > 3. OPERATIONAL SPECIFICATION This section describes how your program must operate. The program will be given one command line option, which is the name of a text file containing the inventory. The format of this file is described below (Section 3.1). The program will read this file to determine the starting inventory of snacks. It will then begin the simulation, in which it reads user commands and responds accordingly. The required commands are described in Section 3.4. 3.1. Inventory. Before starting the simulation, your program must open, read, and close the text file specified in the first command line argument after the script name. This file will consists of 6 lines, each of which describes one of the six snacks available for purchase. The format of a line is stock,price,name where stock is the number of the snack available at the beginning of the simulation, price is the price of the snack in cents (which will be a multiple of 5), and name is a string not containing the character ”,” that describes the snack. The order of the snacks is important, because when ordering from the machine, a snack is indicated by its 0-based index; thus snack 2 means the third line of the inventory file. Here is a sample inventory you can use for testing: 6,125,Cheesy dibbles 10,115,Oat biscuits 12,75,Sugar rings 5,150,Celery crunchies 6,205,Astringent persimmon 10,95,Almond crescents This inventory file is available for download from https://dumas.io/teaching/2020/fall/mcs260/project2/sample_inventory.txt This inventory indicates, for example, that snack 2 is Sugar rings, of which there are initially 12 available, each of which has a cost of $0.75. 3.2. The simulation. After reading the inventory, your program should enter a loop (the command loop) in which it does the following, repeatedly, in order: • Print CREDIT: followed by the total amount of credit currently deposited in the machine, printed on the same line. The credit is initially $0.00. It should always be printed as a dollar sign, followed by a dollar amount with two digits after the decimal point. • Print a prompt > • Wait for one line of user input • Perform the action associated with the user input, which may involve additional output (see Section 3.4) Note that during the simulation, you need to keep track of the credit (the total amount of money deposited to the machine) and display it on each iteration of the loop. The remaining stock of each snack must also be tracked, as this will change as a result of purchases and restocking. 3.3. Control logic overview. The next section describes the commands your simulation must accept from the user. This section is a high-level description of the underlying principles of operation; for full details see Section 3.4. The simulated vending machine allows the user to insert coins to add credit. If the credit already equals or exceeds the price of the most expensive snack in the inventory, any coin inserted will be immediately returned. The user can select a snack by number (0–5), and if the credit currently in the machine equals or exceeds the price of the snack, then the snack is dispensed. Any change (the difference of the credit and the price) is dispensed as coins. Finally, a maintenance worker can specify that one of the snacks is being restocked, i.e. more of that snack has been loaded into the machine. Restocked snacks are then available for purchase. 3.4. Commands. The simulation must support the following commands: • quarter - simulates deposit of one quarter ($0.25). If the current credit is less than the most expensive item in the inventory (including any items that may be out of stock), the coin is accepted and credit increases by $0.25. Otherwise, the coin is rejected by printing the line RETURN: quarter to indicate that the quarter just deposited is returned. • dime - simulates deposit of one dime ($0.10). The logic is the same as the quarter command, except that if the dime is not accepted, the line to be printed is RETURN: dime • nickel - simulates deposit of one dime ($0.05). The logic is the same as the quarter command, except that if the nickel is not accepted, the line to be printed is RETURN: nickel • inventory - display the current inventory in the format of 0-based index, followed by name, followed by price, and then a parenthetical statement of the number available, in this format: 0 Cheesy dibbles $1.25 (6 available) 1 Oat biscuits $1.15 (10 available) 2 Sugar rings $0.75 (12 avilable) 3 Celery crunchies $1.50 (5 available) 4 Astringent persimmon $2.05 (6 available) 5 Almond crescents $0.95 (10 available) • Any of the digits 0, 1, 2, 3, 4, 5 - this is a request to purchase the snack whose 0-based index in the inventory is the given integer. The action depends on the current credit and stock: – If the current credit is sufficient to purchase that snack, and if the stock of that snack is positive, then the machine dispenses the snack followed by change. Dispensing the snack is simulated by printing VEND: Name of snack where “Name of snack” is replaced by the name specified in the inventory. Then, returning change is simulated by printing lines such as RETURN: quarter RETURN: dime RETURN: nickel so that each line corresponds to one coin that is returned. The process for making change is subject to additional rules, described in Section 3.5. After a successful purchase and dispensing of change, the stock of that item decreases by one, and the credit is set to $0.00. – If the stock of the requested item is zero, the following line is printed: MSG: Out of stock The credit is unchanged, and the loop begins again immediately. (For example, if the credit was also insufficient for that item, no message is printed to that effect.) – If the stock of the requested item is positive, but the current credit is NOT sufficient to purchase that snack, then the following line is printed: MSG: Insufficient credit The credit is unchanged. • restock - add to the inventory of one snack. This command never appears on a line by itself, and is always followed by a space and then two integers separated by spaces. The first integer is the 0-based index of a snack, and the second is the number of additional items loaded. The effect of this command is to immediately increase the inventory of that snack. The current credit is not changed. For example, restock 3 18 means that the inventory of snack 3 should be increased by 18. • return - a request to return all currently-deposited credit. The credit should be returned to the user in the same way that change is returned after a successful purchase (see Section 3.5 for detailed rules). • exit - exit the program. 3.5. Coin return rules. The specifications above include two situations in which coins need to be dispensed to the user: • After a purchase, to give change • In response to the return command, to return the current credit In each case, simulated coins are dispensed by printing lines such as RETURN: quarter RETURN: dime RETURN: nickel each of which corresponds to a single coin. The sequence of coin return lines must begin with quarters, followed by dimes, and lastly nickels. Change must be given using the largest coins possible, so for example it is never permissible to give two or more dimes and one or more nickel, because the same change could be made with the number of quarters increased by one. For the purposes of this assignment, the machine never runs out of coins. The following “greedy” approach will dispense coins meeting these requirements: (1) Dispense quarters until the remaining amount to return is less than $0.25. (2) Dispense dimes until the remaining amount to return is less than $0.10. (3) Dispense nickels until the remaining amount to return is zero. Note that unlike most real-world vending machines, these rules mean that the return command may give back a different set of coins than the user deposited. For example, after depositing five nickels, the return command would return a single quarter. 3.6. Efficiency. Your program must be able to complete 50 commands in less than 30 seconds, not counting the time a user takes to enter the commands. This is an extraordinarily generous time budget, as a typical solution will take at most 0.01 seconds to complete 50 commands. It is almost certain that you will not need to pay attention to the speed of any operation in your program. However, if you perform tens of millions of unnecessary calculations in the command loop, or do something else unusual that makes your program slow to respond to commands, then the autograder will run out of time in testing your program. In this case you will not receive credit.

National Wing Company (NWC) is gearing up for the new B-48 contract. Currently NWC has 100 equally qualified workers. Over the next three months NWC has made the following commitments for wing production:

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Each worker can either be placed in production or can train new recruits. A new recruit can be trained to be an apprentice in one month. The next month, he, himself, becomes a qualified worker (after two months from the start of training). Each trainer can train two recruits. The production rate and salary per employee is estimated below.

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At the end of July, NWC wishes to have no recruits or apprentices but have at least 140 full-time workers. Formulate and solve a linear program for NWC to accomplish this at minimum total cost.

(Please provide excel sheets)

Briefly summarize the arguments of the social scientists:

Horace Miner

Richard Sosis

Audrey Richards

Victor Turner

(Subject is Anthropology)

FoodBox is an online business that serves many customers by allowing them to order food for delivery from local restaurants. The company has a web portal that has a listing of local restaurants for a zip code. The restaurants will be able to register with the portal and list their menus for an annual subscription fee of $190 or a monthly subscription fee of $25. Drivers, who are willing to pick up food from restaurants and deliver to customers will be able to register with the portal for an annual subscription fee of $95 or a monthly subscription fee of $15. Customers will be able to search for restaurants based on the zip code and view a list of all restaurants registered with FoodBox around that area. They will be able to view the menu for a particular restaurant and place an order. The payment is complete when the order is placed. Once an order is placed, the restaurant can either accept or reject the order. If an order is rejected, the customer must be refunded for the payment made. If an order is accepted by the restaurant, the restaurant provides an estimated time in the portal when the order will be ready for pickup. The application searches for drivers who are near the restaurant and available to deliver the food and notifies the selected driver to drive to the restaurant at the time when the order is expected to be ready for pickup. The driver is also provided with the address of the customer to whom the delivery needs to be made. The portal also provides a way for users to register for an account with the system, track their orders, view their order history and process a payment using credit card, paypal or zelle.

1. Sequence Diagram: Complete the sequence diagram on the next page for the use case scenario described below (20 points)

Assume the following Use Case Description:

In 150- 200 words, describe different single subject case designs

a. Describe AB, ABA, ABAB, multiple baseline, and alternating treatments design

b. Give an example of how you could use this design

c. Pick two designs to compare. Why would you choose one design over the other?

HARDING PLASTIC MOLDING COMPANY CAPITAL BUDGETING: RANKING PROBLEMS On January 11, 1993, the finance committee of Harding Plastic Molding Company (HPMC) met to consider 4 capital-budgeting projects. Present at the meeting were Robert L. Harding, president and founder, Susan Jorgensen, comptroller, and Chris Woelk, head of research and development. Over the past 5 years, this committee met every month to consider and make final judgment on all proposed capital outlays brought up for review during the period. Harding Plastic Molding Company was founded in 1965 by Robert L. Harding to produce plastic parts and molding for the Detroit automakers. For the first 10 years of operations, HPMC worked solely as a subcontractor for the automakers, but since then has made strong efforts to diversify in an attempt to avoid the cyclical problems faced by the auto industry. By 1993, this diversification attempt led HPMC into the production of over 1,000 different items, including kitchen utensils, camera housings, and phonographic and recording equipment. It also led to an increase in sales of 800% during the 1975–1993 period. As this dramatic increase in sales was paralleled by a corresponding increase in production volume, HPMC was forced, in late 1991, to expand production facilities. This plant and equipment expansion involved capital expenditures of approximately $10.5 million and resulted in an increase of production capacity of about 40%. Because of this increased production capacity, HPMC made a concerted effort to attract new business and consequently has recently entered into contracts with a large toy firm and a major discount department store chain. While non-auto-related business has grown significantly, it still represents only 32% of HPMC’s overall business. Thus, HPMC has continued to solicit non-automotive business, and, as a result of this effort and its internal research and development, the firm has four sets of mutually exclusive projects to consider at this month’s finance committee meeting. Over the past 10 years, HPMC’s capital-budgeting approach has evolved into a somewhat elaborate procedure in which new proposals are categorized into three areas: profit, research and development, and safety. Projects falling into the profit or research and development areas are evaluated using present value techniques, assuming a 10 percent opportunity rate; those falling into the safety classification are evaluated in a more subjective framework. Although research and development projects have to receive favorable results from the present value criteria, there is also a total dollar limit assigned to projects of this category, typically running about $750,000 per year. This limitation was imposed by Harding primarily because of the limited availability of quality researchers in the plastics industry. Harding felt that if more funds than this were allocated, “we simply couldn’t find the manpower to administer them properly.” The benefits derived from safety projects, on the other hand, are not in terms of cash flows; hence, present value methods are not used at all in their evaluation. The subjective approach used to evaluate safety projects is a result of the pragmatically difficult task of quantifying the benefits from these projects in dollar amounts. Thus, these projects are subjectively evaluated by a management-worker committee with a limited budget. All 8 projects to be evaluated in January are classified as profit projects. The first set of projects listed on the meeting’s agenda for examination involves the utilization of HPMC’s precision equipment. Project A calls for the production of vacuum containers for thermos bottles to be produced for a large discount hardware chain. The containers would be manufactured in 5 different size and color combinations. This project would be carried out over a 3-year period, for which HPMC would be guaranteed a minimum return plus a percentage of the sales. Project B involves the manufacture of inexpensive photographic equipment for a national photography outlet. Although HPMC currently has excess plant capacity, each of these projects would utilize precision equipment of which the excess capacity is limited. Thus, adopting either project would tie up all precision facilities. In addition, the purchase of new equipment would be both prohibitively expensive and involve a time delay of approximately 2 years, thus making these projects mutually exclusive. (The cash flows associated with these 2 projects are given in Exhibit 1.) The second set of projects involves the renting of computer facilities over a 1-year period to aid in customer billing and, perhaps, inventory control. Project C entails the evaluation of a customer billing system proposed by Advanced Computer Corporation. Under this system, all the bookkeeping and billing presently done by HPMC’s accounting department would be done by Advanced. In addition to saving costs involved in bookkeeping, Advanced would provide a more efficient billing system and do a credit analysis of delinquent customers, which could be used in the future for in-depth credit analysis. Project D is proposed by International Computer Corporation and includes a billing system similar to that offered by Advanced, and in addition, an inventory control system that will keep track of all raw materials and parts in stock and reorder when necessary. This inventory control system would reduce the likelihood of material stockouts, which have become more and more frequent over the past 3 years. (The cash flows for these projects are given in Exhibit 2.)

EXHIBIT 1. Harding Plastic Molding Company Cash Flows:

Year Project A Project B

$-75,000   $-75,000

1 10,000 43,000

2 30,000 43,000

3 100,000 43,000

EXHIBIT 2. Harding Plastic Molding Company Cash Flows:

Year Project C Project D

0 $-8,000 $-20,000

1 11,000 25,000

QUESTIONS What are the NPV, PI, Payback, and IRR for projects A and B? Should project A or B be chosen? Might your answer change if project B is a typical project in the plastic molding industry?

What are the NPV, PI, Payback, and IRR for projects C and D? Should project C or D be chosen?

I need help with projects C and D please.

Write Recommendation Write and present a formal recommendation for management on which projects should be undertaken (A or B, C or D). Include your supporting calculations for each grouping of projects and your reasoning for your decision. Paper should be 2-3 pages double spaced, free of grammatical errors, and have a professional appearance.

1) Calculate the amount of energy (in kJ) necessary to convert 357 g of liquid water from 0*C to water vapor at 172*C. The molar heat of vaporization of water is 40.79 kJ/mol. The specific heat for water is 4.184 J/g*C, and for steam is 1.99 J/g*C.

2) The vapor pressure of ethanol is 1.00 x 10^2 mmHg at 34.90*C. What is its vapor pressure at 54.83*C? (deltaHvap for ethanol is 39.3 kJ/mol)

3) The vapor pressure of a liquid doubles when the temperature is raised from 85*C to 96*C. At what temperature will the vapor pressure be seven times the value at 85*C?

Explain the kind of decisions a person might consider if he decides to go ahead and purchase Odoo.

True or false? The all patient case-mix index measures the proportion of inpatients versus outpatients.

The skill of self confidence by Dr. Ivan Joseph - Public speaking

1). What you believe is the primary purpose of the speech. Compare that with what you consider to be the speaker's "message" or thesis/claim.

2). As you listen deeply, decipher this speaker's main points. How does he support his main points? (We're talking content here.) What techniques are used to build credibility?

3). What delivery skills work best as this speaker attempts to develop a relationship with his audience?

4). Finally, what particular part of the speech resonated with you the most? Why do you think that is?

If you traveled to another country, what elements would most likely cause you to experience culture shock?

Shell Malaysia has use Star CRM solutions, analyze and evaluate in operational; analytic; and collaborative functions of the chosen CRM and highlight their benefits to that particular industry or a business entity. (explain in detail)