Produce a Pareto diagram that shows total spending in a descending order and at the same...

Produce a Pareto diagram that shows total spending in a descending order and at the same time the cumulative percentage curve.
Based on the above, can you estimate which part of visitors accounts for 75% of total revenues in the island.

The data used are:

NATIONALITY	TOT_SPEND
GERMAN	1988
GERMAN	1988
GERMAN	1834
GERMAN	1823
GERMAN	1741
GERMAN	1708
GERMAN	1707
GERMAN	1701
FRENCH	1598
GERMAN	1531
FRENCH	1494
GERMAN	1437
GERMAN	1420
ITALIAN	1416
GERMAN	1414
GERMAN	1391
GERMAN	1358
ITALIAN	1350
GERMAN	1298
GERMAN	1296
GERMAN	1295
GERMAN	1295
FRENCH	1280
FRENCH	1245
BRITISH	1217
FRENCH	1204
GERMAN	1184
ITALIAN	1166
FRENCH	1140
GERMAN	1112
GERMAN	1095
ITALIAN	1088
ITALIAN	1079
FRENCH	1057
BRITISH	1046
FRENCH	1041
GERMAN	1026
GERMAN	1013
GERMAN	1011

Expert Solution

Step 1 : put the values in the descending order (highest first, lowest last)

Step 2: calculate the cumulative sales on the sorted values

cumulative revenue (i) = cumulative revenue (i-1) + sales (i)

where sales (i) is the sales in the ith row in the sorted data

cumulative revenue (1) = sales (1)

Step 3 : % cumulative revenue (i) = cumulative revenue/total revenue

NATIONALITY	TOT_SPEND	Cumulative revneue	Cumulative revneue
GERMAN	1988	1988	4%
GERMAN	1988	3976	7%
GERMAN	1834	5810	11%
GERMAN	1823	7633	14%
GERMAN	1741	9374	18%
GERMAN	1708	11082	21%
GERMAN	1707	12789	24%
GERMAN	1701	14490	27%
FRENCH	1598	16088	30%
GERMAN	1531	17619	33%
FRENCH	1494	19113	36%
GERMAN	1437	20550	39%
GERMAN	1420	21970	41%
ITALIAN	1416	23386	44%
GERMAN	1414	24800	47%
GERMAN	1391	26191	49%
GERMAN	1358	27549	52%
ITALIAN	1350	28899	54%
GERMAN	1298	30197	57%
GERMAN	1296	31493	59%
GERMAN	1295	32788	62%
GERMAN	1295	34083	64%
FRENCH	1280	35363	67%
FRENCH	1245	36608	69%
BRITISH	1217	37825	71%
FRENCH	1204	39029	74%
GERMAN	1184	40213	76%
ITALIAN	1166	41379	78%
FRENCH	1140	42519	80%
GERMAN	1112	43631	82%
GERMAN	1095	44726	84%
ITALIAN	1088	45814	86%
ITALIAN	1079	46893	88%
FRENCH	1057	47950	90%
BRITISH	1046	48996	92%
FRENCH	1041	50037	94%
GERMAN	1026	51063	96%
GERMAN	1013	52076	98%
GERMAN	1011	53087	100%

In the graph the part in the left of the red line corresponds to the 75% of the revenue

In the table pasted above the chart, the part above from the point where 76% in the cumulative percentage appears corresponds to it.

76% of the revenue stands at = 40213

milcah answered 8 months ago

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