BBM203/03: David set a mathematics quiz for his students The quiz is marked out of 10 His students’ marks are summarized: Business Statistics Assignment, WOU, Malaysia

University Wawasan Open University (WOU)
Subject BBM203/03: Business Statistics

Question 1

David set a mathematics quiz for his students. The quiz is marked out of 10. His students’ marks are summarized in the table below:

  • Construct an appropriate frequency table and draw a histogram to depict the data above
  • Compute the mean
  • Calculate the variance and standard deviation
  • Calculate the coefficient of variation
  • Interpret the distribution of marks as shown in your histogram

Question 2

Explain the following concepts:

  • Confidence levels
  • Qualitative data
  • Multiplication rule
  • Bayes’ Law

Question 3

Part 1

A researcher collected a sample of 50 respondents in a shopping mall on a weekend. The data are organized in the table below:

Calculate the following probabilities

  • Prob (A)
  • Prob (University graduate)
  • Prob (A University graduate)
  • Prob (University graduate A)

Part 2

The random variable Y follows a normal distribution with mean µ and variance σ2 , i.e. Y  N(µ, σ2). Suppose we have the following information:

P(X ≤ 66) = 0.0421 and P(X ≥ 81) = 0.1298

(a) Compute the value of σ = 5

(c) Calculate P(65 ≤ X ≤ 74)

Question 4

  • A sample of test scores is obtained. The scores are displayed as follows:

11, 16, 19, 15, 7, 8, 10

Test the hypothesis that the mean score is 15 at a 1% significance level

  • A chemical manufacturer is concerned about the degree of contamination in the raw material shipments purchased from a supplier. Taking a random sample of 20 shipments of raw materials, the standard deviation of contamination is 3.59. Construct the 95% confidence interval for population variance.

Are You Searching Answer of this Question? Request Malaysian Writers to Write a plagiarism Free Copy for You.

Get Help By Expert

If you are still looking for trustworthy university Assignment Help your search ends here. The Malaysia Assignment Help has got the largest team of expert professional writers who provide the step by step solution on statistic assignment at an affordable price.

Answer

Recent Solved Questions

Online Exam & Assignment Writing Services

11770+ Orders Delivered

4.9/5
5 Star Rating

Confidential & Secure Assignment Help For

Group Assignment Help

Online Exam -Test & Quiz

Cheapest Price Quote

Diploma & Certificate Levels

Semester & FYP Papers

Summative & Individual

GBA & Reflective

Last Minute Assistance

Sample Assignment Download

CSC116 Introduction To Computers And Programming Assignment Sample UITM Malaysia
In this assignment sample, students will learn about how computer systems work from the ground up. They'll be introduced to all of the major components that make a system function…
Computer & It
ARK732 International Study Workshop UITM Assignment Sample Malaysia
The ARK732 International Study Workshop course is a great opportunity to expand your horizons and explore different cultures around the world. You'll have the chance to visit universities and cities…
Assignment Sample

UP TO 15 % DISCOUNT

Instant Paper Writing Services by Native Malaysia Writers

Plagiarism Free Solutions
100% Original Work
24*7 Online Assistance
Native PhD Experts
Hire a Writer Now

Get Assistance for Assignments, online Exam, and Projects Writing