Required
A.Draw a scatter diagram of the administrative cost and client number from January to December asshown above.
B.Visually fit a semi-variable cost line to the plotted data in part A above. What are the fixed andvariable costs? Express the cost behavior in formula form Y = a + bX correct to two decimal places.
CIdentify the number of client number and administrative costs, for each month within the relevantrange.
D.Use the high-low method to estimate the behavior of CWTs administrative costs based on the clientload within the relevant range. Express the cost behavior in formula form Y = a + bX correct to twodecimal places.
E.Construct an Excel spreadsheet and use Excel commands to perform a least-square regression andestimate the administrative cost behavior within the relevant range. Express the cost behavior informula form Y= a + bX correct to two decimal places. Compute and interpret the R2 value for theexpression in NOT more than 50 words.
F.Predict the administrative costs for a month when there are 80 clients. Use the cost equations, highlowmethod in Part D and least-square regression in Part E to make the predication. Whichprediction would you prefer to use? Why? Justify your answer of NOT more than 100 words.
G. How confident should Peter be about the three cost models (the scatter diagram and a visual fit
semi-variable cost line, high-low method and least-square regression within a relevant range)?
A.Prepare a diagram to show the life cycle for a bottle of water.
B.For each of the stages in the life cycle, identify whatever impacts on society and the environment ofnot more than 200 words.
C.Identify additional information that you would need to evaluate the environmental impact.
D.Prepare a brief report of not more than 400 words to the shareholders of PSW explaining why it is intheir best interests to carefully manage the organisations environmental impact.

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