Ask Statistics and Probability Expert

Professional Research and Communication

Assignment 1

Overview

This is an early intervention task worth 10% of the course. The purpose of the early intervention task is to make sure that you are engaging and on track to pass the course.

This task consists of a series of questions that go over the material that we covered in weeks one to four. They require you to think carefully about the material and tell me YOUR thoughts on what the answers should be and justify your answers where necessary.

This is an individual assignment that you are expected to complete by yourself. All outside sources of information must be acknowledged.

Learning Outcomes Assessed

The following course learning outcomes are assessed by completing this assessment:

K3. Identify appropriate research philosophies for IT projects which match organisational approaches

S1. Utilise effective communication practice in organisations.

S2. Demonstrate expert English language skills in academic and professional contexts

Assessment Details

1.     Consider a survey in which customers' perceptions of the service at a local store are gathered using a Likert Scale. Using this survey the customer gives a score of 1, 2, 3, 4 or 5 in response to a statement about the service. The scores represent

1 - Strongly Disagree

2 - Disagree

3 - Unsure

4 - Agree

5 - Strongly agree

For example, one of the statements might be "The staff member appears knowledgeable regarding the store's products" and the customer would give a score based upon how much they agree with the statement. Now consider a situation in which 100 customers provide a response to this statement and they are distributed as follows

1

- Strongly Disagree

10 (10%)

2

- Disagree

25 (25%)

3

- Unsure

17 (17%)

4

- Agree

32 (32%)

5

- Strongly agree

16 (16%)

Now let's assume that the store wants to summarise this data into a single score. They calculate this score by multiplying the number of responses by the number assigned, adding the five together and dividing by the number of respondents. In this case, (10 + 50 + 51 + 128 + 80) / 100 = 319/100 = 3.19

Explain why this value is not a valid summary of the data collected. Suggest a more valid way of representing the data. Justify your response.

2. Consider the situation of a polling company which wants to predict the outcome of an upcoming election. They send their employees to stand on street corners in the capital city between 9 and 12 every week-day, with instructions to stop passers-by and ask them which party they will be voting for in the election. Does the data collected provide a true reflection of the likely outcome of the election? Explain why or why not? Justify your answer.

3. We discussed four types of quantitative data in class - nominal, ordinal, ratio and interval. What types of data are collected from each of the following questions? Justify your answer.

a. The number of cars passing through an intersection in an hour, in whole numbers

b. Kelvin thermometers

c. Fahrenheit thermometers

d. The type of mobile phone someone has (Nokia, Samsung, Apple, Other)

e. A person's height.

4. Assume you are the lecturer for a university topic. You believe it is possible that attending lectures in person rather than viewing lecture recordings online will improve student performance. Explain how you could test this hypothesis in each of the following ways:

a. As a descriptive non-experimental study

b. A quasi experimental study

c. An experimental study

Which of the studies would give you the firmest evidence of whether your theory is correct? Justify your answers.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M93065181
  • Price:- $30

Guranteed 24 Hours Delivery, In Price:- $30

Have any Question?


Related Questions in Statistics and Probability

Introduction to epidemiology assignment -assignment should

Introduction to Epidemiology Assignment - Assignment should be typed, with adequate space left between questions. Read the following paper, and answer the questions below: Sundquist K., Qvist J. Johansson SE., Sundquist ...

Question 1 many high school students take the ap tests in

Question 1. Many high school students take the AP tests in different subject areas. In 2007, of the 144,796 students who took the biology exam 84,199 of them were female. In that same year,of the 211,693 students who too ...

Basic statisticsactivity 1define the following terms1

BASIC STATISTICS Activity 1 Define the following terms: 1. Statistics 2. Descriptive Statistics 3. Inferential Statistics 4. Population 5. Sample 6. Quantitative Data 7. Discrete Variable 8. Continuous Variable 9. Qualit ...

Question 1below you are given the examination scores of 20

Question 1 Below you are given the examination scores of 20 students (data set also provided in accompanying MS Excel file). 52 99 92 86 84 63 72 76 95 88 92 58 65 79 80 90 75 74 56 99 a. Construct a frequency distributi ...

Question 1 assume you have noted the following prices for

Question: 1. Assume you have noted the following prices for paperback books and the number of pages that each book contains. Develop a least-squares estimated regression line. i. Compute the coefficient of determination ...

Question 1 a sample of 81 account balances of a credit

Question 1: A sample of 81 account balances of a credit company showed an average balance of $1,200 with a standard deviation of $126. 1. Formulate the hypotheses that can be used to determine whether the mean of all acc ...

5 of females smoke cigarettes what is the probability that

5% of females smoke cigarettes. What is the probability that the proportion of smokers in a sample of 865 females would be greater than 3%

Armstrong faber produces a standard number-two pencil

Armstrong Faber produces a standard number-two pencil called Ultra-Lite. The demand for Ultra-Lite has been fairly stable over the past ten years. On average, Armstrong Faber has sold 457,000 pencils each year. Furthermo ...

Sppose a and b are collectively exhaustive in addition pa

Suppose A and B are collectively exhaustive. In addition, P(A) = 0.2 and P(B) = 0.8. Suppose C and D are both mutually exclusive and collectively exhaustive. Further, P(C|A) = 0.7 and P(D|B) = 0.5. What are P(C) and P(D) ...

The time to complete 1 construction project for company a

The time to complete 1 construction project for company A is exponentially distributed with a mean of 1 year. Therefore: (a) What is the probability that a project will be finished in one and half years? (b) What is the ...

  • 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