Q1. A researcher is investigating a new financial awareness program, designed to reduce the amount of money people spend on credit cards. She randomly selects 20 people with credit cards to put through the program. She obtains the records of money spent in the year before the program, as well as the amount of money spent in the year after the program, and conducts the appropriate 2-sample t-test. What is the correct number of degrees of freedom for this test?

Q2. A shopper was interested in comparing prices between Woolworths and Coles. He found the cost of the same 12 items at 7 randomly selected Woolworths stores and 9 randomly selected Coles stores. Let   be the price at the i-th Woolworths store and   be the price at the i-th Coles store. The following data was obtained:

What is the pooled estimate of the standard deviation?

Q3. A manager implements a new efficiency program, designed to decrease the time it takes for works to process orders. A random sample of 10 workers are monitored and their average time take to process an order before and after the training is given below.

If the manager conducts the appropriate hypothesis test to assess whether this program has been successful or not (in decreasing the time taken), what is the relevant value of the test statistic? (define the difference as before - after)

Q4. This question continues Q3. What is the appropriate p-value for the hypothesis test in Q4? It might help to know that

p(T > 0.81) = p(T < -0.81) = 0.22

p(T > 2.14) =  p(T < -2.14) = 0.03

where T is the appropriate t-distribution for the hypothesis test in Q4.

Problem 5

This problem is designed to make sure you can write a program that swaps data passed into it such that the caller's data has been swapped. This is something that is done very frequently in manipulating Data Structures.

The Solution / Test Requirements

I want your program to demonstrate that you understand how to swap information passed into a function and have the calling routine print out the data before and after the call to verify the data has been swapped. Call your functions Swap and SwapStructs. Swap is a function that receives the information to swap. The information is two integers. How should Swap receive them? How should it process them? SwapStructs is a function that receives two structs to swap. How should SwapStructs receive them? How should it process them?

Your Test Main must:

1. Declare two integers and initialize them to the values 1 and -1.

2. Print out the integers.

3. Call Swap to swap the values.

4. Print out the values on return from the function.

5. Declare a struct that holds 2 integers using a typedef for the struct.

6. Dynamically allocate two separate variables using the typedef and fill the dynamically allocated structs, filling the first with the values 10 and 20 and the second with 30 and 40.

7. Print out the values in each of the structs

8. Call SwapStructs to swap the contents of the structs.

9. Print out the values in the structs on return.

10. Free the memory that was dynamically allocated.

For your convenience, here is an output of my program:

Before call..I= 1, J=-1 After call.. I=-1, J= 1

Before SwapStructs..ptr1 contains 10 and 20

Before SwapStructs..ptr2 contains 30 and 40

After SwapStructs..ptr1 contains 30 and 40

After SwapStructs..ptr2 contains 10 and 20

Process returned 0 (0x0) execution time : 0.034 s Press any key to continue.

Kingbird Company, a manufacturer of small tools, provided the following information from its accounting records for the year ended December 31, 2020.

Additional information is as follows.

Prepare a schedule of adjustments as of December 31, 2020, to the initial amounts per Kingbird’s accounting records. (If an amount reduces the account balance then enter either with a negative sign preceding the number, e.g. -15,000 or in parenthesis, e.g. (15,000).)

Sunland Company, a manufacturer of small tools, provided the following information from its accounting records for the year ended December 31, 2020.

Additional information is as follows.

Prepare a schedule of adjustments as of December 31, 2020, to the initial amounts per Sunland’s accounting records. (If an amount reduces the account balance then enter either with a negative sign preceding the number, e.g. -15,000 or in parenthesis, e.g. (15,000).)

<Bit Stuffing Question>
a) The following message is to be sent by a host running a protocol with starting and ending flags
and bit stuffing. The starting and ending flags are both 01111110 and they have not yet been
added.
0111111011111011110011111100111111000000111110101111110
What is the message actually sent (after bit stuffing and after adding the starting and ending flags)?
b) Suppose the bit pattern shown above is received by a host running the bit stuffing protocol.
That is, this is the actual message that has been received after bit stuffing and after adding the
starting and ending flags. How many frames are being received? What is the actual content of
each frame before the flags are added and the bits are stuffed?

1. You have just won the prize in the State lottery. A recent innovation is to offer prize winners a choice of payoffs. You must choose one of the following prizes:

a. $1,000,000 paid immediately
b. $600,000 paid exactly one year from today, and another $600,000 paid exactly 3 years from today
c. $70,000 payment at the end of each year forever (first payment occurs exactly 1 year from today)
d. An immediate payment of $600,000, then beginning exactly 5 years from today, an annual payment of $50,000 forever

e. An annual payment of $200,000 for the next 7 years (first payment occurs exactly 1 year from today)
You believe that 8% p.a. compounded annually is an appropriate discount rate. Assuming you wish to maximize your current wealth, which is the best prize?

2. Kate's financial advisor tells her that she wil need $2 million to fund her retirement. She plans to work for another 30 years before retiring. She will make 30 contributions to a pension. How much will each contribution be, if the interest rate is 9% p.a?

3. Mary has just retired and has $1 miliom in her retirement account. Her bank offers an arrangement whereby the bank takes her $1 million now and pays her $110,000 at the end of each year for the next 20 years. Is it a fair deal, if the offered rate is 10%p.a?

Group lending was the most striking innovation of the Grameen Bank, and it has been widely imitated by other microfinance initiatives.

(a). How does group lending address the problems that limit the supply of credit to poor households from traditional formal-sector lenders (e.g., banks)?

(b). A careful study of the operations of the Grameen Bank in the early 1990s concluded that each dollar of lending increased the consumption expenditures of borrowing households by 17 cents relative to what they would have been without the loan (repayment rates were almost 100% so this was net of repayment). Loans were very costly to administer, however, and at the interest rate charged on the loans, the Grameen Bank required a subsidy of 22 cents on every dollar of lending to remain sustainable. In your view, does this look like an effective use of public funds? Would it be better, for example, to reduce the subsidy (i.e., increase the commercial viability of the operation) by charging a higher interest rate?

Innovation and Trading City

   In the Stitch and Squeeze example, suppose the shoe output per hour in Stitch increases to 16 and the exchange rate increases to 4 shoes per gallon of milk. A Stitch household switches 1 hour of production time, and a Squeeze household switches 2 hours of production time.

Ignoring any transaction cost, what are the gains from trade for each type of household?

If the exchange time is 1/4 hour, what are the gains from trade for each type of household?

1. At CES 2019, L’Oreal won the award for best innovation in wearable technology for their product, My Skin Track pH. The scientific and medical communities have long known the link between skin pH and common skin concerns, yet there has never been a consumer-friendly way to measure it. My Skin Track pH is the first-ever, wearable sensor and companion app to measure personal skin pH levels and create customized product regimens to better care for skin. Using microfluidics technology, the sensor captures trace amounts of sweat to provide an accurate skin pH reading. Conventional methods for reading pH levels include swabbing the skin for sweat and using a bulky digital pH meter. Researchers know that both methods provide accurate data,but were not sure which would provide results faster. A sample of seven subjects were brought in and each tested both methods. The data is shown below.

Using a significance level of 0.05, does one method provide results that are significantly faster?

What could a student learn in the Course Fostering a Culture of Innovation

How would an individual live their professional and have a personal life if they were trying to become an innovative Leader?

Professionally and Personally Living with 3 Ways to Focus on Innovative Strategy in a Workplace

How would a person professionally and personally Live and Measure their Progress towards their Success?

What are strategies for professional and personal Living when fostering positive social Change

P create an action Plan!

Please provide references.