You are provided with a summary table that lists causes of incomplete ATM transactions. You are tasked with identifying the causes that contribute the most to the problem of incomplete transactions. You are also asked to identify if there is a relationship between the frequency of the causes and the number of customer complaints regarding the banks ATM machines.

Cause	Cost of Repair in Dollars	Number of Complaints
Warped card jammed	168	93
Card unreadable	157	87
ATM malfunctions	126	45
ATM out of cash	128	38
Invalid amount requested	119	32
Wrong keystroke	90	27
Lack of funds in account	62	18
Total	850	340

a)

Compute the Coefficient of Correlation Analysis.

b)

Make a SCATTER PLOT that shows the value for R2.

c)

Based on the correlation coefficient r and the result of the scatter plot, how would you describe the relationship between the frequency of incomplete ATM transactions and number of complaints?

d)

Make a PARETO CHART based on the cause frequency.

e) Based on the Pareto chart, what are the most important causes of incomplete ATM transactions that need to be addressed. Explain why/how you identified these causes.