ou are considering two different strategies for a savings account that you intend to close when you retire exactly 29 years from today. For Strategy 1, deposit $1,750 per quarter for 8 years (first deposit today; last one exactly 8 years from today); no new deposits will be made after the end of the deposit period, but interest continues to accrue until the account is closed. For Strategy 2, you’ll make your first quarterly deposit exactly 8 years from today, each quarterly deposit also equals $1,750 , and you’ll continue making quarterly deposits for 21 years, so that you make the final deposit exactly 29 years from today when you close the account. The savings rate always is 9.5% compounded quarterly.

What will strategy 1 accumulate at retirement?

JAVA

(1) Create two files to submit:

• Payroll.java - Class definition
• PayrollClient.java - Contains main() method

Build the Payroll class with the following specifications:

• 4 private fields
  • String name - Initialized in default constructor to "John Doe"
  • int ID - Initialized in default constructor to 9999
  • doulbe payRate - Initialized in default constructor to 15.0
  • doulbe hrWorked - Initialized in default constructor to 40
• 2 constructors (public)
  • Default constructor
  • A constructor that accepts the employee’s name, ID, and pay rate as arguments. These values should be assigned to the object’s name, ID, and payRate fields.
• 7 public member methods (mutators, accessors, and other) (8 pts)
  • getName()
  • getID()
  • setPayRate() & getPayRate()
  • setHrWorked() & getHrWorked()
  • A method named grossPay that returns employee’s gross pay (=hrWorked * payRate)

(2) In main(), create two Payroll objects: one use the info inputted by the user, and the other use the default constructor, and print the info for each employee (2 pts)

Ex:

Enter the name, ID, pay rate, and hours worked of an employee:
Linda Smith
1234
20.5
35


Employee Records: 
Name            ID           Pay Rate      Hrs Worked     Gross Pay 
Linda Smith     1234         $20.50/hr     35.0          $717.50
John Doe        9999         $15.00/hr     40.0          $600.00

Question Workspace

• Check My Work (3 remaining)

A sample of Rh-105 (104.906 g/mol) has an activity of 4.89 x 1021 Bq. What mass of Rh-105 is lost after 7 minutes?

Calculate the answer ____________ g Rh-105 is lost.

Fresh water from rivers and lakes varies in acidity/alkalinity depending on the rocks and soils it runs over. Granite country yields water that is slightly acidic, while water from limestone country is slightly alkaline. Acidity and alkalinity are measured on a pH scale, on which 7 is neutral, values below 7 are acidic and values above 7 are alkaline. pH can change due to pollution or due to waste from biomass such as algae.

A certain river, fed by various tributaries, usually has a pH of about 6.4 (a bit acidic). The data below shows pH values from randomly-selected sites on this river and its tributaries.

pH
5.7
5.7
5
5.8
4.6
4.7
4.7
5.4
5.9
6
5.4
5.9
5.3
5.8
6
5.3
5.2
5.8
5.5
5.9
5.6
6.3
6.4
6.5
6.6
6.1
6.3
6.9
6.7

(a) Provide a graph of the data distribution. Bear in mind that distribution shape and outliers may be important. [4 marks]

(b) How much evidence is there that the pH of water in this river system has changed?
Evaluate the evidence using a hypothesis test with a significance level of 1%. Take care to state and evaluate all assumptions, and provide an appropriate conclusion. [11 marks]

(c) Provide a 99% confidence interval for the mean pH in this river system. [3 marks]

ABC book store is selling business books, magazines and stationeries. The following transactions were occurred in February 2020 (GST inclusive).

Feb.     6          Purchased books from Book Depository $880, terms 2/7, n/30.

            7          Paid freight on February 6 purchase $44.

            8          Sold inventory to customers $990, terms n/30. The inventory cost $600.

            10        Returned $99 books to Book Depository.

            13        Paid Book depository in full.

Required

Prepare the journal entries to record the transactions.

Estimate House Paints Demand for Sherwin-Williams

1) What is regression equation for paint sales using multiple linear regression model? Please include regression results using Excel?)

2) If A=180, P=$14, and M=20, what is an approximate 95 percent prediction interval for paint sales?

Population distribution :

Population distribution of Japan is 334.66/km2 on an area of 377,930 km2.

Japan is politically divided into 8 regions and 47 prefectures.

(all primary and secondary regions of high population density lie on the coast; one-third of the population resides in and around Tokyo on the central plain (Kanto Plain))

• Hokkaido: 66.4 ppl/km2
• Tōhoku: 130 ppl/km2
• Kantō: 1300 ppl/km2
• Chūbu: 300 ppl/km2
• Kansai: 830 ppl/km2
• Chūgoku: 240 ppl/km2
• Shikoku: 220.3 ppl/km2
• Kyūshū: 332.4 ppl/km2

Population Projections :

Japan population will decrease to 100 million people by 2049 from where it is now at 127 million and will continue to decrease to just above 50 million by 2100.

Japan’s population decline has several social and economic repercussions, such as one-third of the population being elderly by 2036 and a lack of working-age people to help keep the economy growing.

NEED A BRIEF SUMMARY OF THIS PART PLEASEEE !!

The water diet requires one to drink two cups of water every half hour from when one gets up until one goes to bed, but otherwise allows one to eat whatever one likes. Four adult volunteers agree to test the diet. They are weighed prior to beginning the diet and after six weeks on the diet. The weights ( in pounds) are Person 1 2 3 4 Weight before diet 180 125 240 150 Weight after diet 170 130 215 152 For the population of all adults, assume that the weights loss after six weeks on the diet ( weight before beginning the diet---weight after six weeks on the diet) is Normally distributed with mean μ.

a. Test the hypothesis if the diet leads to weight loss

A homogeneous sphere S, a uniform cylinder C, and a thin pipe P are in contact when they are released from rest on the incline shown. Knowing that all three objects roll without slipping, determine, after 9s of motion, if theta=27 degrees, Find

1. acceleration of sphere down the incline (m/s^2)
2. acceleration of pipe down the incline (m/s^2)
3. The distance between the centers of the cylinder and the sphere (m)
4. Acceleration of cylinder down the incline (m/s^2)
5. the distance between the centers of the pipe and the cylinder (m)