The principles of construct validity and reliability are fundamental cornerstones of the scientific method

The principles of construct validity and reliability are fundamental cornerstones of the scientific method

Question 1

Discuss the following statement with appropriate examples to support your arguments:

“The principles of construct validity and reliability are fundamental cornerstones of the scientific method.”   (600 words)

[10 Marks]

**Explain what is scientific method.

**Explain the principles of construct VALIDITY AND RELIABILITY.

** How Validity and Reliability are fundamental to scientific method.

Question 2 (Module 8)

For surveying 50 families telephonically in Launceston (Tasmania), which sampling method should be deployed to ensure best possible representation of the city’s population? Provide details of the procedure and important parameters that should be considered to assemble a representative sample from the overall population.        (600 words)

[10 Marks]

** Which sampling method should be deployed for surveying 50 families TELEPHONICALLY in LAUNCESTON and

**Explain WHY is it chosen as the best possible representation of the city population.

**Provide the details of the procedure and important parameters that should be considered to assemble.

Question 3 (Module 10)

The manager of the quality assurance department of a light bulb company claims that 95 percent of the bulbs manufactured by the company are defect-free. The CEO of the company, a quality conscious person, checks a random sample of 225 bulbs and finds 87 percent of the bulbs in the sample to be defect-free. The CEO now wants to test the hypothesis that 95 percent of bulbs manufactured by the company are defect-free, as claimed by the quality assurance manager. Test the hypothesis with 0.01 and 0.05 levels of significance. The tables for critical values corresponding to the two levels of significance can be accessed from the prescribed textbook, online etc.    (750 words)

[12 Marks]

**  More details on this following book  –     Business Research Methods, 12th edition (Kindle Edition)by Donald Cooper, Pamela Schindler

Question 4 (Module 10)

The following data relate to the advertising expenditure (AE) and corresponding sales revenue (SR) (both in millions of dollars) of a firm for six consecutive years:

AE : 3, 6, 9, 12, 15, 18
SR : 10, 15, 25, 28, 27, 42

  1. a  Create a scatterplot and give your opinion (70 words)
  2. b  Find the equation of the least-squares line and give your opinion. (70 words)
  3. c  Predict SR if AE is 35 and give your opinion. (50 words)

[12 Marks]

** More details on this following book  (Chapter 17 & 18)  :
Business Research Methods, 12th edition (Kindle Edition) by Donald Cooper, Pamela Schindler

Question 5 (Module 9)

What data collection procedure would you recommend for research to answer the question:

“Why do many female shoppers choose a particular retail store to buy clothing?”   (350 words)

[6 Marks]

** Explain what data collection procedure would you recommend and WHY

**Justify your answer.

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