Stats Help for College-level Students

Integer goal programming model : a. Please describe several economic or "hard" constraints that you would include in your model. b.Please describe several goal or "soft" constraints that you would include in your model. c.Please describe how you would prioritize and/or relative weight the goals you have described in b.

You have now become an expert in the use of goal and integer programming. Consider now how you would creatively apply an integer goal programming model to this problem setting. You are asked here to provide a conceptual or written formulation rather than a mathematical formulation. a. Please describe several economic or "har ...continues

Binary integer programming model (capital budgeting)

a. Define the decision variables for this formulation. b. Show the binary integer programming formulation including the objective function and all relevant constraints. c. Solve the problem as a binary integer programming model on a spreadsheet, or in LINDO. d. Interpret this solution to management in its language.

Comparisons Involving Proportions and a Test of Independence

Does age make a difference in the amount of savings a worker feels is needed to be secure at retirement? A study by CommSciences for Transamerica Asset Management found that 0.24 of workers in the 25-33 age category feel that $250,000 to $500,000 is enough to be secure at retirement. In the 34-52 age category already 0.35 ...continues

Regression

a. Fit a logistic regression model to predict the probability of successful completion of the MBA program based on undergraduate grade point average and GMAT score. b. Explain the meaning of the regression coefficients for the model fit in (a). c. Predict the probability of successful completion of the program for a student ...continues

Regression

4. Fit to the data a quadratic polynomial model. Test your model for adequacy of fit and for appropriateness. 5. In which of the four quarters does the seasonal component reach its peak? In which does it reach its trough? Explain.

Testing a hypothesis.

A Baker says they can make a cake in 60 minutes from scratch, which I do not think he can. After watching them 18 times I come up with the Mean time of 65.37 minutes with a standard deviation of 8.2 minutes Using the Student's t Distribution because I have a small sample, I'll let my null hypothesis be: Ho: m = 60 and ...continues

Calculating the mean and standard deviation from the given situation.

Find the mean and standard deviation for the random variable x, the number of defects per pack produced, if 20 packs of digits are produced, with a 3% rate of defects.

Hypothesis testing.

How do I decide on formulas for Ho hypothesis? The manager of a paint supply store wants to determine whether the amount of paint contained in 1 gallon cans purchased from a nationally known manufacturer actually averages 1 gallon. It is known from the manufacturer's specifications that the standard deviation of the amount ...continues

Hypothesis

The quality-control manager at a lightbulb factory needs to determine whether the mean life of a large shipment of lightbulbs is equal to the specified value of 375 hours. The process standard deviation is known to be 100 hours. A random sample of 64 lightbulbs indicates a sample mean life of 350 hours a. State the null and alt ...continues

Statistics Multiple choice: The Exhibits are the sentences or tables of numbers below the Exhibit number. Total 15 multiple choice questions. In the following multiple-choice questions, circle the correct answer and give 1-3 line defense for your choice:

16. If a coin is tossed three times, the likelihood of obtaining three heads in a row is a. zero b. 0.500 c. 0.875 d. 0.125 e. None of the above answers is correct. 17. If A and B are independent events with P(A) = 0.05 and P(B) = 0.65, then P(A|B) = a. 0.05 b. 0.0325 c. 0.65 The following rep ...continues