Q7. Despite the usefulness and benefits of driving an electric car like Tesla, consumers are not showing enough enthusiasm for buying such vehicle. Design four questions to measure conumer's attitude towards Tesla electric car so that you can collect nominal, ordinal, interval and ratio data for your analysis.

Q6. What are the four different types of probability sampling methods? Explain two of them with examples and discuss their effectiveness under different situations.

Q5. What are the three different types of research design that researchers can use? Briefly discuss different scenarios under which these three designs are appropriate. Illustrate your answer with examples.

Discuss four different types of observation techniques that are available to researchers with examples. Briefly explain the advantages and disadvantages associated with each technique and show how they relate to exploratory, descriptive or causal research methods.