- Factory supervisors’ salaries -> product cost or period cost and why?

- Speakers used in Sony home-theater systems -> variable or fixed cost and why?

- Insurance costs related to a Mary Kay Cosmetics' manufacturing plant -> variable or fixed cost and why?

A 1.0 mol sample of helium gas and a 1.0 mol sample of ammonia gas are held at the same temperature. Assuming both behave as ideal gases, do they have the same total internal energy?

A buffer contains 1.0 mol of CH3CO2H and 1.0 mol of CH3CO2- diluted with water to 1,0 L. How many moles of NaOH are required to increase the pH of the buffer to 5.10? pKa of CH2CO2H is 4.74

Can someone explain this step by step please!

1. A single community is comprised of just three voters i = {1, 2, 3}, each of whom have differing tastes for public parks, as described by the following three demand functions.

q₁ = 100 – 2p

q₂ = 110 – 2p

q₃ = 126 – 2p  

(a)        Public parks are a local public good. Assuming that the marginal cost to society,

mc^s, of providing each unit of park space is $90, what is the socially optimal quantity of parks? Provide a graph with your answer. Please show all of your work. 3pt

(b)        Assume that the price tag for each unit of park is split evenly across the community

members so that the marginal cost to each member is just $30. At this price, what is

each member’s optimal quantity of park space? Is there unanimity across the three individuals regarding the desired level of park space? 3pt

(c)        Using Lindahl pricing (aka Lindahl taxing), what price schedule would guarantee unanimous agreement across all three members and would also yield a socially optimal outcome? Please show your work. 3pt

2. Please refer back to Q1 when answering the following questions.

(a)        Draw each individual’s demand curve for park space. Then calculate each person’s

consumer surplus at each of the three optimal quantities. Please show your work. 3pt

                        Hint: remember that each person must pay $30 per unit of park space consumed.

(b)        Using the consumer surplus calculations from Q2(a), fill in the following table by

assigning a rank to each person’s park space options. 3pt    

(c)        In a political environment with direct democracy through majority rule, which of the

three park space alternatives will consistently win a series of pair-wise votes? 3pt

d) Is the winning option aligned with what would be predicted by the median voter

            theorem? Is this outcome socially optimal? Explain why or why not. 3pt  

Project Outcomes:
Develop a python program that uses:
 decision constructs
 looping constructs
 basic operations on an list of objects (find, change, access all elements)
 more than one class and has multiple objects
Project Requirements:
1. Develop a simple Hotel program. We will have two classes, a Hotel class
representing an individual hotel and a Room class. The Hotel class will contain several
Room objects and will have several operations. We will also have a driver program to test
the Hotel class.
2. Build a Hotel class that will store information about a Hotel. It will include a name and
location. It should also include a list of class Room to hold information about each
room. It will also have a int called occupiedCnt that keeps track of how many rooms in
the hotel are occupied.
Specific Requirements for the Hotel Class:
1. The Hotel class has two constructors
1. __init__ function, will read in the hotel name and location from hard-coded
values in the tester class, such as Beach Marriot Pensacola, it will also assign
numOfRooms to zero.  numOfRooms indicates how many rooms are in the hotel.
It will create a 10 element array.

2. The Hotel will have an addRoom method that will create each room with the required
information: room number, bed type, smoking/non-smoking, and the room rate. Create at
least 5 rooms with different characteristics. Each room will also have a boolean field
called occupied attribute that will be set to false when the room is created. Don't forget
to increment the numOfRooms instance variable.  Example values for the rooms are:
101 queen s 100
102 king n 110
103 king n 88
104 twin s 100
105 queen n 99
3. The UML class diagram for the Hotel class will look like this:

Hotel

theRooms: Array Room[]
name: String
location: String
occupiedCnt: int
numOfRooms: int

def __init(self)__(String,String)
def isFull(self) : boolean
def isEmpty(self) : boolean
def addRoom(self ,roomnumber,bedtype,smoking,price)
def addReservation(self,occupantName ,smoking,
bedtype)
def cancelReservation(self,occupantName)
def findReservation(self,occupantName):
def printReservationList(self)
def getDailySales(self) :
def occupancyPercentage(self) :
Setters and getters methods for name and location.

4. isFull() – returns a boolean that is true if all the rooms in the hotel are occupied.
5. isEmpty() – returns a boolean that is true if all the rooms in the hotel are unoccupied.
6. The addReservation() method takes three parameters: the occupant’s name
(String), smoking or non-smoking request (char), and the requested bed type (String).
When this method is called, the hotel will search the list of its rooms for one that matches
the bed type and smoking/non-smoking attributes. If an unoccupied room with the correct
attributes is found, the renter's name will be set and the occupied attribute will be set
to true. In either case a message will be printed that will state whether or not the
reservation was made.
7. When the cancelReservation() method executes, the hotel will search for the
name of the visitor in each room. If it is found, the occupied attribute will be set to false.
In either case a message will state whether or not the reservation was cancelled. This
method calls the private utility method findReservation()to scan the list of rooms
looking for a guest by name. It will return the index of the room in the Array of rooms
or NOT_FOUND if the room is not found, which will be declared as:
NOT_FOUND = -1;
8. findReservation() will take in a String representing the occupant’s name and
search the occupied rooms for a reservation with that person’s name. It will return the
index of the room or NOT_FOUND if not found.
9. printReservationList() will scan through all the rooms and display all details
for only those rooms that are occupied. For example:

Room Number: 102
Occupant name: Pinto
Smoking room: n
Bed Type: king
Rate: 110.0
Room Number: 103
Occupant name: Wilson
Smoking room: n
Bed Type: king
Rate: 88.0
10. getDailySales() will scan the room list, adding up the dollar amounts of the room
rates of all occupied rooms only.
11. occupancyPercentage() will divide occupiedCnt by the total number of rooms to
provide an occupancy percentage.
12. __str__ – returns a nicely formatted string giving hotel and room details (by calling
the __str__ in the Room class) for all the rooms in the hotel. For example:
Hotel Name : Beach Marriot
Number of Rooms : 5
Number of Occupied Rooms : 1

Room Details are:

Room Number: 101
Occupant name: Not Occupied
Smoking room: s
Bed Type: queen
Rate: 100.0
Room Number: 102
Occupant name: Coffey
Smoking room: n
Bed Type: king
Rate: 110.0
Room Number: 103
Occupant name: Wilson
Smoking room: n
Bed Type: king
Rate: 88.0
Room Number: 104
Occupant name: Not Occupied

Smoking room: s
Bed Type: twin
Rate: 100.0
Room Number: 105
Occupant name: Not Occupied
Smoking room: n
Bed Type: queen
Rate: 99.0

13. The Room class diagram will look like this:

Room

roomNum: int
bedType: String
rate: double
occupantName: String
smoking: char
occupied: boolean
def __init__(int,String,char,double)
def getBedType(): String
def getSmoking(): char       
def getRoomNum(): int
def getRoomRate(): double
def getOccupant(): String
def setOccupied(boolean)
def setOccupant(String)
def setRoomNum(int)
def setBedType(String)
def setRate(double)
def setSmoking(char)
def isOccupied(): boolean

1. The __init__() for a Room takes an int (room number), String (bed type), char (s or n for
smoking or non-smoking)), and a double (room rate).
2. isOccupied() method returns true if the room is occupied, false otherwise.

3. __str__() provides all the details of a room - room number, name of guest(if
occupied) , bed type, smoking/non-smoking, rental rate. This should all be formatted
nicely with one attribute on each line using the '\n' escape character. See example above.
4. Several accessor and mutator methods for the Room class.

# Use list to store the room details.
You have to store required data in the list/database. You can store hotel name, address, and
all rooms. Customer data in database tables.

Net Present Value Method—Annuity for a Service Company

Amenity Hotels Inc. is considering the construction of a new hotel for $81 million. The expected life of the hotel is 7 years with no residual value. The hotel is expected to earn revenues of $22 million per year. Total expenses, including depreciation, are expected to be $16 million per year. Amenity Hotels’ management has set a minimum acceptable rate of return of 9%.

a. Determine the equal annual net cash flows from operating the hotel. Enter your answer in million. Round your answer to two decimal places.
$ million

b. Compute the net present value of the new hotel, using the present value of an annuity of $1 table above. Round to the nearest million dollars. If required, use the minus sign to indicate a negative net present value.
Net present value of hotel project: $ million

c. Does your analysis support construction of the new hotel?
Yes/No , because the net present value is positive/negative .

Net Present Value Method—Annuity for a Service Company

Welcome Inn Hotels is considering the construction of a new hotel for $70 million. The expected life of the hotel is 10 years with no residual value. The hotel is expected to earn revenues of $19 million per year. Total expenses, including depreciation, are expected to be $14 million per year. Welcome Inn management has set a minimum acceptable rate of return of 10%. Assume straight-line depreciation.

a. Determine the equal annual net cash flows from operating the hotel. Round to the nearest million dollars.
$ million

b. Calculate the net present value of the new hotel using the present value of an annuity of $1 table above. Round to the nearest million dollars. If required, use the minus sign to indicate a negative net present value.
Net present value of hotel project: $ million

c. Does your analysis support the purchase of the new hotel?
, because the net present value is  .

Theoretical question:

What is the Research Purpose, Objective, and Design?

Also: What is the sampling method & size, data collection method as well as data analysis & Presentation?

The American Conservatory theater, a major repertory theater located in San Francisco, was completing its tenth season. The management team at ACT decided to conduct a major research study, intended to help their planning effort. A questionnaire was deceloped and mailed to their approximately 9,000 season subscribers. A return rate of 40% was obtained. A sample of 982 of these turned questionnaires was selected for analysis.

One of the major interest ACT management was in developing an understanding of the dynamics of the process whereby individuals became ACT subscriber. To assist in this process, whereby individuals became ACT suscribers. To assist in this this process, the sample was divided into four different groups according to their behavior pattern over the 5 seasons.

1. Continual subscriber (32%)- subscribed all 10 seasons

2. Gradual 31%- one or more seasons of attendance followed by becoming a suscriber

3. Sudden 21%- became a subscriber without attending prior performance

4. miscellaneous patterns 21%

The existence of a substantial "sudden subscriber" group was surprising and ran counter to conventional belief among theater managers that people were first enticed to attend a few performances at a particular theater and only after they had some positive experiences with this theater would they become suscribers.

The next step in the research study was to attempt to identify characteristics of the continual, gradual, and sudden subscriber groups that might be of use in understanding the segment differences and as inputs in the development of audience building and retention programs. Five variables appeared to be useful in this regard.

1. Years resident in the San Francisco Bay Area, measured on a scale ranging from 1= two years or less to 5= more than 20 years.

2 Age of suscribers, measured on a scale ranging from 1=25 years old or less to 5= more than 65 years old.

3.Household income, measured on a scale ranging from 1=50,000 per year.

4. whether the subscriber spend more than 20 hours each week watching TV, measured as a dummy variable: 1 if yes, 0 ifno

5. attendence at 6 other institutions that is ballet, civic light, opera, DeYoung museum, museum of modern art, opera, and symphony. The attendance score is the number of the six different activities that the respondent attended at least once in the previous year

A tire company finds the lifespan for one brand of its tires is normally distributed with a mean of 48,400 miles and a standard deviation of 5000 miles.

If the manufacturer is willing to replace no more than 10% of the tires, what should be the approximate number of miles for a warranty?

What is the probability that a tire will last more than 52,000 miles?  

What is the probability that a mean of 25 tires will last less than 47,000 miles?