An Economics professor is trying to investigate the distribution of the grades of the students in his class.

The data represents the grades of 30 randomly selected students.        

a. Using Excel, Find the summary statistics State the mean, median, mode, range and standard deviation of this sample data.

b. Comment of the shape of the Distribution by comparing the mean, median and mode in a) above ( Note: If mean< median

If mode < median < mean (Right skewed); If mean=median=mode (Symmetrical)

c. Using Excel, construct a frequency table, histogram and Ogive.

Use the bin range as: 60, 70, 80, 90 and 100.

Describe the shape of the histogram above. (Do not include Graph, Simply comment on the Shape.

d. Find the Quartiles (Q₁, Q_{2 ,} Q₃) using Excel . Interpret the Lower quartile (Q₁).

1) Find the following indefinite integrals.

    a) (4-3xsec^2 x)/x dx

    b) (5 sin^ 3 x ) / (1+cosx)(1-cosx) dx

2) A particle starts from rest and moves along the x-axis from the origin at t = 0 with acceleration

       a(t) =   6 - 2t (ms^-2) at time t. When and where will it come to rest.

       Remember dvdt = acceleration and dsdt = velocity

3) Use substitution to find the following integrals.

    a) (9x)/ sqrt of (3+x2) dx                         Let U = 3+x^2

    b) (dx) / (25- x^2 ) Let x = 5 sin U

4) Consider the integral 1∞ 1 / (2x+1)^3 dx.

    a) Explain why the integral is improper.

    b) Determine whether the integral is convergent or divergent and if convergent, evaluate he integral. (Show all working)

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Problem 7-5A Determine depreciation under three methods (LO7-4)

[The following information applies to the questions displayed below.]

University Car Wash built a deluxe car wash across the street from campus. The new machines cost $270,000 including installation. The company estimates that the equipment will have a residual value of $24,000. University Car Wash also estimates it will use the machine for six years or about 12,000 total hours. Actual use per year was as follows:

References

Section BreakProblem 7-5A Determine depreciation under three methods (LO7-4)

7.

value:
3.00 points

Required information

Problem 7-5A Part 1

Required:

1. Prepare a depreciation schedule for six years using the straight-line method. (Do not round your intermediate calculations.)
  

References

eBook & Resources

WorksheetDifficulty: 3 Hard

Problem 7-5A Part 1Learning Objective: 07-04 Calculate depreciation of property, plant, and equipment.

Check my work

8.

value:
4.00 points

Required information

Problem 7-5A Part 2

2. Prepare a depreciation schedule for six years using the double-declining-balance method. (Do not round your intermediate calculations.)
  

References

eBook & Resources

WorksheetDifficulty: 3 Hard

Problem 7-5A Part 2Learning Objective: 07-04 Calculate depreciation of property, plant, and equipment.

Check my work

9.

value:
3.00 points

Required information

Problem 7-5A Part 3

3. Prepare a depreciation schedule for six years using the activity-based method. (Round your "Depreciation Rate" to 2 decimal places and use this amount in all subsequent calculations.)
  

References

eBook & Resources

WorksheetDifficulty: 3 Hard

Problem 7-5A Part 3Learning Objective: 07-04 Calculate depreciation of property, plant, and equipment.

Check my work

Considering the following time series data: Week 1 2 3 4 5 6 7 8 9 10 Sales 8 11 14 19 16 10 8 12 14 16 Compute the naïve forecast and the three-week Moving Average and evaluate the forecast accuracy considering the Mean Absolute Error (MAE), Mean Squared Error (MSE) and the Mean Absolute Percentage Error (MAPE) for each of these two predictions. Compare both of them and determine which is the best model

Health and fitness

1. background/introduction

2. Etiology

3. Epidemiology

4. Signs and symptoms

5. Treatment modalities

6. Medical, Pharmacological and Nursing management

7. summary/conclusion

Which project should D&A should pick?

Project A:

Project B:

The cost of capital (discount rate) for both projects is 7.89% /year. Based on the given information, please calculate the present value of the cash flow for both projects. Which project has a higher present value? Please show all the calculations

Consider the following term structure: Term Yield 1 1.5% 2 2.3% 3 3.5% 4 3.7% Compute the implied forward rate on a one-year security 1 year from now and 2 years from now. What is the economic interpretation of these rates according to the pure expectations theory? …according to the liquidity preference (modified expectations) theory? Suppose that you believe that the actual future one-year rates will be greater than the implied forward rates. How would you alter your desired borrowing pattern to take advantage of your forecast?

Explain these mentioned ethical theories with advantages and disadvantages.

1.Teleological

2.Deontological

3.Justice and Fairness

4.Ontological

Q.1. A population consists of five numbers 2, 4, 5, 8, 12. (i) List all possible samples of size 2 that can be drawn from this population with replacement. (ii) Construct the sampling distribution of the samples mean drawn in part (i). (iii) Verify that mean of the sampling distribution is equal to the population mean and δ = δ/ .

solve the above problem step by step in proper format

needed asap !!!

1. import java.utility.Random;

2.  

3. public class Sequen

4.  

5. private int stand  

6. private int calc;  

7.  

8. public Sequen(int numStand)

9. {

10.         stand = numStand;

11.         skip;

12.         }

13.          

14.         public void skip()

15.         {

16.         Random sit = new Random();

17.         calc = sit.nextInt(stand) + 1;

18.         }

19.          

20.         public getStand()

21.         {

22.         return stand;

23.         }

24.          

25.         int getCalc()

26.         {

27.         return calc;

28.         }

29.         }

One error is already identified for you as shown below:

Line Number: 5

Error description: Missing semicolon

Statement after correction: private int stand;

Identify 5 other errors and give their Line Number, Error description and Statement after correction.