Post

Working on this homework? Our experts will prepare a plagiarism free solution with Money-back guarantee. | SOLVED Post (300+ words): 
Think of some discrete random variable you observe on a regular basis. For example, it could be the (rounded) number of hours you sleep, how many gallons of gas are in your car when you get into it, how many boxes of cereal are in your house, how many days between grocery shopping, etc. (just make sure it takes only integer values). Try to list all of the possible values that this discrete random variable can take. If you can, collect some frequency data – give the relative frequency table and use this as an estimate of the probability distribution. Calculate the expected value and the standard deviation for this probability distribution. Interpret these parameters, and discuss whether they make sense based on your experience. 

Statistics Help!

Working on this homework? Our experts will prepare a plagiarism free solution with Money-back guarantee. | SOLVED Describe the distribution of hours worked each week.

Provide appropriate numerical summaries based on the shape of your distribution.
Describe the shape, center, and spread using numerical measures that best describe the distribution.
In your description, include an interval of typical values and a discussion of variability.

Do the data suggest that there is a problem with students working too many hours during the week?

Use the data to support your answer.

Testing hypothesis

Working on this homework? Our experts will prepare a plagiarism free solution with Money-back guarantee. | SOLVED   
Within Arizona State, students were randomly assigned to one of two Mathematics teachers – Mrs. Elite and Mrs. Bright. After the assignment, Mrs. Elite had 30 students, and Mrs. Bright had 25 students. At the end of the year, each class took the same standardized test. Mrs. Elite’s students had an average test score of 78, with a standard deviation of 10; and Mrs. Bright’s students had an average test score of 85, with a standard deviation of 15.
Test the hypothesis that Mrs. Elite and Mrs. Bright are equally effective teachers. Use a 0.10 level of significance. (Assume that student performance is approximately normal.) (6mks)

R studio

Working on this homework? Our experts will prepare a plagiarism free solution with Money-back guarantee. | SOLVED  
ng the Framingham Heart Study dataset provided, perform the ANOVA multivariable linear regression analysis using BMI as a continuous variable. Before conducting the analysis, be sure that all participants have complete data on all analysis variables.
Describe how each characteristic is related to BMI. Are crude and multivariable effects similar? What might explain or account for any differences?
H0 The BMI is not related to the patient characteristics of Glucose, Angina, Stroke, CVD, and Hypertension in the Framingham Heart Study. (Null Hypothesis)
H1 The BMI is related to the patient characteristics of Glucose, Angina, Stroke, CVD, and Hypertension in the Framingham Heart Study. (Alternative Hypothesis)
Upload both Excel sheet into R Studio. (Refer to Chapters 7 & 12 in Introductory Statistics with R or pages 111-122 in EXCEL statistics A quick guide T.Test). Conduct the simple linear regression (ANOVA) by using the Excel Regression tool in the Data Analysis Toolpak.
Remember SEX is coded 1=male and 2=female.
Ensure to submit the following requirements for the assignment:

Present your findings in a Word document by copying and pasting the ANOVA table into the document.
Your paper must be written with a title page, an introduction, a discussion where you interpret the meaning of the ANOVA , and a conclusion should be included.
Your submission should be 3-4 pages to discuss and display your findings.
Provide support for your statements with in-text citations from a minimum of two scholarly, peer-reviewed articles. One of these sources may be from the class readings, textbook, or lectures, but the others must be external. The Saudi Digital Library is a good place to find these sources and should be your primary resource for conducting research.
Follow APA 7th edition and Saudi Electronic University writing standards

Solve the problems using excel-Optimization Models with Integer Variables

Working on this homework? Our experts will prepare a plagiarism free solution with Money-back guarantee. | SOLVED Review your understanding of the material by working through the problem sets. Pay particular attention to the problems indicated by the colored box around the problem number.  You can compare your work on those with the solutions that are in the Student Solutions manual.  You should find the Conclusion pages 324-325 a good review of what you should have learned in this module.
    40-You are given a group of possible investment projects for your company’s capital. For each project, you
are given the NPV the project would add to the firm, as well as the cash outflow required by each project during each year. Given the information in the file P06_40.xlsx, determine the investments that maximize the firm’s NPV. The firm has $25 million available during each of the next five years. All numbers are in millions of dollars. 
44-To graduate from Southeastern University with a major in operations research (OR), a student must complete at least three math courses, at least three OR courses, and at least two computer courses. Some courses can be used to fulfill more than one requirement: Calculus can fulfill the math requirement; Operations Research can fulfill the math and OR requirements; Data Structures can fulfill the computer and math requirements; Business Statistics can fulfill the math and OR requirements; Computer Simulation can fulfill the OR and computer require- ments; Introduction to Computer Programming can fulfill the computer requirement; Forecasting can fulfill the OR and math requirements; and Data Mining can fulfill the OR, math, and computer requirements. Some courses are prerequisites for others: Calculus is a prereq- uisite for Business Statistics; Introduction to Computer Programming is a prerequisite for Computer Simulation and for Data Structures; and Business Statistics is a pre- requisite for Forecasting and Data Mining. Determine how to minimize the number of courses needed to satisfy the major requirements. (Hint: Because Calculus is a prerequisite for Business Statistics, for example, you will need a constraint that ensures that the decision variable for Calculus is greater than or equal to the decision vari- able for Business Statistics.) 

Journal Entry-Models with Integer Variables

Working on this homework? Our experts will prepare a plagiarism free solution with Money-back guarantee. | SOLVED Please answer the following questions in your journal:

In this module, you looked at models with integer variables. Please describe an example of a problem for which these models would be appropriate.

M5 – Models with Integer Variables
The difference between Linear Programming (LP) models (of previous chapters) and Integer Programming (IP) models (of this chapter) is that the changing cells are constrained to binary values (0 or 1) or integer positive values (0, 1, 2, 3 …. ).  This simple difference requires changing  the mathematical solution method from the “Simplex technique” to other methods such as the “Branch and Bound” Algorithm.  Read the textbook sections through 6.2 to understand the effects of changing the solution method on using Excel’s Solver tool.
Read the remaining sections of Chapter 6 which detail the following IP models:

6.3 Capital Budgeting Models;
6.4 Fixed Cost Models; 
6.5 Set Covering and Location-Assignment Models; and
6.6 Cutting Stock Models.

Section 6.3 has the associated video Capital Budget Funding Model, Section 6.4 the associated video Fixed Cost Manufacturing Model, and Section 6.5 the associated video Location Hubs Model. You may find this videos helpful in understanding the material.