Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Applied Statistics Expert

Business Data Analysis Computer Assignment -

PART 1 -

Economists believe that high rates of unemployment are linked to decreased life satisfaction ratings. To investigate this relationship, a researcher plans to survey a sample of families in Queensland. Answer the following questions:

1. What type of survey method the researcher could use and why?

2. What sampling method could be used to select the sample and why?

3. What are the variables the researcher should consider collecting data for the purpose of the analysis and why? Identify the data type(s) for the variables.

4. What kind of issues we may face in this data collection?

PART 2 -

To study the relationship between the preparation time spent by each student (in hours) for the exam and the reported mark, a sample of 100 students were selected randomly from a large statistics class. The data are stored in the file named "ASSIGNMENTDATA.XLS" in the course website. Using EXCEL, answer the following questions:

5. Using the appropriate BIN values, draw a histogram for each variable. Then, comment on the shape of the two distributions.

6. Use an appropriate plot to investigate the relationship between the two variables. Briefly explain the selection of each variable on the X and Y axes and why?

7. Prepare a numerical summary report about the data on the two variables by including the summary measures, mean, median, range, variance, standard deviation, smallest and largest values and the three quartiles, for each variable.

8. Compute a numerical summary measure to measure the strength of the linear relationship between the two variables. Interpret this value.

9. Construct a 90% confidence interval estimate for the population average time spent on preparation. Interpret the interval (use the spreadsheet on the course website).

10. Test the hypothesis that population average time spent on preparation is more than 65 hours using a 5% level of significance (use the spreadsheet on the course website).

11. Estimate a simple linear regression model and present the estimated linear equation. Then, interpret the coefficient estimates of the linear model.

12. Interpret the coefficient of determination, R-squared (R2) value.

Attachment:- Assignment Files.rar

Applied Statistics, Statistics

  • Category:- Applied Statistics
  • Reference No.:- M93107172
  • Price:- $55

Guranteed 36 Hours Delivery, In Price:- $55

Have any Question? 


Related Questions in Applied Statistics

Quantitative methods in health statistical analysis report

Quantitative Methods in Health Statistical Analysis Report - Question 1 - Are you a Lark or an Owl? Studies indicate that about 10% of us are morning people (Larks) while 20% are evening people (Owls) and the rest are no ...

Applied statistics - regression assignmentin this

Applied Statistics - Regression Assignment In this assignment you are expected to set up a regression equation, run that regression and interpret and evaluate the results. You will need to carefully state all null hypoth ...

Exercise -q1 do the example data in table 35-2 meet the

Exercise - Q1. Do the example data in Table 35-2 meet the assumptions for the Pearson χ 2 test? Provide a rationale for your answer. Q2. Compute the χ 2 test. What is the χ 2 value? Q3. Is the χ 2 significant at α = 0.05 ...

Assignment - research topicpurpose the purpose of this task

Assignment - Research topic Purpose: The purpose of this task is to ensure you are progressing satisfactorily with your research project, and that you have clean, useable data to analyse for your final project report. Ta ...

Part a -question 1 - an analyst considers to test the order

PART A - Question 1 - An analyst considers to test the order of integration of some time series data. She decides to use the DF test. She estimates a regression of the form Δy t = μ + ψy t-1 + u t and obtains the estimat ...

Business data analysis computer assignment -part 1

Business Data Analysis Computer Assignment - PART 1 - Economists believe that high rates of unemployment are linked to decreased life satisfaction ratings. To investigate this relationship, a researcher plans to survey a ...

Statistics for business decisions assignment assignment 1

Statistics for Business Decisions Assignment Assignment 1 - QUESTION 1 - Time Series Regression The table below presents the number of students attending Statistics lectures in weeks 1 to 10. Week Number of students 1 90 ...

Business statistics project assignment -there will be two

BUSINESS STATISTICS PROJECT ASSIGNMENT - There will be two parts to this assignment: Part A: Group Work (A Business Report) Part B: Individual Reflective Piece (A Ministerial Brief) The response to Part A must be provide ...

Business data analysis facts from figures assignment

BUSINESS DATA ANALYSIS: FACTS FROM FIGURES Assignment - Question 1 - Private capital expenditure for 12 successive quarters are presented in the following table: Quarter Millions 1 31,920 2 25,120 3 30,350 4 24,650 5 30, ...

Question - go to the website national quality forum nqf

Question - Go to the website, National Quality Forum (NQF), located in the Webliography, and download the article by WIRED FOR QUALITY: The Intersection of Health IT and Healthcare Quality, Number 8, MARCH 2008. You are ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As