QUESTION $3$

a$.$ In a research, why is it often unnecessary to conduct a census to find out about an entire population? Why would it

be impractical?

b$.$ Honda GH is interested in leaming what its $550$ dealers think about a new service program Honda provided to the

dealers at the beginning of last year. Honda GH wants to know if the dealers are using the program and, if so$,$ what

they like and dislike about the program. Honda GH does not want to survey all $550$ dealers but wants to ensure that

the results are representative of all the dealers.

Required:

What sampling plan should be used, and why?

c$.$ A researcher wants to investigate the factors that influence employee perfomance in the public sector. Upon

review of the related literature the following three factors were revealed; employee satisfaction, employee

motivation and quality assurance. The objectives of the study are to:

i$.$ Examine the association between employee performance and the identified factors.

ii$.$ Determine whether there are differences in employee performance of male and female employees.

iii. Estimate the effect of employee satisfaction, employee motivation and quality assurance on employee

performance.

Required:

State the appropriate statistical test to achieve each objective, and state two $(2)$ assumptions

of each test mentioned.

d$.$ A researcher wants to investigate whether there is a difference in GDP levels between Europe and America.

Required:

i$.$ State two research questions, and two research objectives in relation to the research.

ii$.$ State the appropriate statement of hypothesis.

iii. What conclusion can be inferred from the analysis?