Calculate the cumulative frequencies

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Reference no: EM131800659

Unplanned shutdowns of reactors have been a chronic problem. After much discussion, the consensus-called the "wisdom"-identified "cylinder changes" and "human error" as the primary causes. A diagnostic approach based on facts was instituted. Here are data on the causes of previous shutdowns:

Cause	Frequency
Cylinder changes	21
Human error	16
Hot melt system	65
Initiator system	25
Interlock malfunction	19
Other	23
	169

(a) Convert the preceding data into a Pareto table having three columns: cause, frequency, and percentage of total frequency.

(b) Calculate the cumulative frequencies for the table in part (a).

(c) Calculate the percentage cumulative frequencies. Make a Pareto diagram by plotting percentage cumulative frequency versus causes.

(d) Comment about the wisdom versus the fact.

Reference no: EM131800659

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