Although millions of elephants once roamed across Africa, by the mid-1980s elephant populations in African nations had been devastated by poaching. Elephants are important to African ecosystems. In tropical forests, elephants create clearings in the canopy that encourage new tree growth. In savannas, elephants reduce bush cover to create an environment that is favorable to browsing and grazing animals. In addition, the seeds of many plant species depend on passing through an elephant’s digestive tract before germination. The status of the elephant now varies greatly across the continent. In some nations, strong measures have been taken to effectively protect elephant populations; for example, Kenya has destroyed over five tons of elephant ivory confiscated from poachers in an attempt to deter the growth of the illegal ivory trade (Associated Press, July 20, 2011). In other nations, the elephant populations remain in danger due to poaching for meat and ivory, loss of habitat, and conflict with humans. The table below shows elephant populations for several African nations in 1979, 1989, 2007, and 2012. The David Sheldrick Wildlife Trust was established in 1977 to honor the memory of naturalist David Leslie William Sheldrick, who founded Warden of Tsavo East National Park in Kenya and headed the Planning Unit of the Wildlife Conservation and Management Department in that country. Management of the Sheldrick Trust would like to know what these data indicate about elephant populations in various African countries since 1979. Country 1979 1989 2007 2012 Angola 12,400 12,400 2,500 2,530 Botswana 20,000 52,000 175,500 175,454 Cameroon 16,200 21,200 15,387 14,049 Cen African Rep 63,000 19,000 3,400 2,285 Chad 15,000 3,300 6,400 3,004 Congo 10,800 70,000 22,100 49,248 Dem Rep of Congo 377,700 85,000 23,714 13,674 Gabon 13,400 76,700 70,637 77,252 Kenya 65,000 19,000 31,636 36,260 Mozambique 54,800 18,600 26,088 26,513 Somalia 24,300 6,000 70 70 Tanzania 316,300 80,000 167,000 117,456 Zambia 150,000 41,000 29,231 21,589 Zimbabwe 30,000 43,000 99,100 100,291 Using Minitab, summarize the data and comment on changes in elephant populations since 1979. Include the following in your report. Analyze the elephant population for each country from 1979 to 2012. Create a multiple boxplot graph that includes boxplots of the total elephant population observations in each year (1979, 1989, 2007, 2012). Use the results of your analyses in questions 1 and 2 above to comment on how the populations of elephants have changed.

Although millions of elephants once roamed across Africa, by the mid-1980s elephant populations in African nations had been devastated by poaching. Elephants are important to African ecosystems. In tropical forests, elephants create clearings in the canopy that encourage new tree growth. In savannas, elephants reduce bush cover to create an environment that is favorable to browsing and grazing animals. In addition, the seeds of many plant species depend on passing through an elephant’s digestive tract before germination. The status of the elephant now varies greatly across the continent. In some nations, strong measures have been taken to effectively protect elephant populations; for example, Kenya has destroyed over five tons of elephant ivory confiscated from poachers in an attempt to deter the growth of the illegal ivory trade (Associated Press, July 20, 2011). In other nations, the elephant populations remain in danger due to poaching for meat and ivory, loss of habitat, and conflict with humans. The table below shows elephant populations for several African nations in 1979, 1989, 2007, and 2012. The David Sheldrick Wildlife Trust was established in 1977 to honor the memory of naturalist David Leslie William Sheldrick, who founded Warden of Tsavo East National Park in Kenya and headed the Planning Unit of the Wildlife Conservation and Management Department in that country. Management of the Sheldrick Trust would like to know what these data indicate about elephant populations in various African countries since 1979. Country 1979 1989 2007 2012 Angola 12,400 12,400 2,500 2,530 Botswana 20,000 52,000 175,500 175,454 Cameroon 16,200 21,200 15,387 14,049 Cen African Rep 63,000 19,000 3,400 2,285 Chad 15,000 3,300 6,400 3,004 Congo 10,800 70,000 22,100 49,248 Dem Rep of Congo 377,700 85,000 23,714 13,674 Gabon 13,400 76,700 70,637 77,252 Kenya 65,000 19,000 31,636 36,260 Mozambique 54,800 18,600 26,088 26,513 Somalia 24,300 6,000 70 70 Tanzania 316,300 80,000 167,000 117,456 Zambia 150,000 41,000 29,231 21,589 Zimbabwe 30,000 43,000 99,100 100,291 Using Minitab, summarize the data and comment on changes in elephant populations since 1979. Include the following in your report. Analyze the elephant population for each country from 1979 to 2012. Create a multiple boxplot graph that includes boxplots of the total elephant population observations in each year (1979, 1989, 2007, 2012). Use the results of your analyses in questions 1 and 2 above to comment on how the populations of elephants have changed.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The status of the elephant now varies greatly across the continent. In some nations, strong measures have been taken to effectively protect elephant populations; for example, Kenya has destroyed over five tons of elephant ivory confiscated from poachers in an attempt to deter the growth of the illegal ivory trade (Associated Press, July 20, 2011). In other nations, the elephant populations remain in danger due to poaching for meat and ivory, loss of habitat, and conflict with humans. The table below shows elephant populations for several African nations in 1979, 1989, 2007, and 2012.

The David Sheldrick Wildlife Trust was established in 1977 to honor the memory of naturalist David Leslie William Sheldrick, who founded Warden of Tsavo East National Park in Kenya and headed the Planning Unit of the Wildlife Conservation and Management Department in that country. Management of the Sheldrick Trust would like to know what these data indicate about elephant populations in various African countries since 1979.

Country	1979	1989	2007	2012
Angola	12,400	12,400	2,500	2,530
Botswana	20,000	52,000	175,500	175,454
Cameroon	16,200	21,200	15,387	14,049
Cen African Rep	63,000	19,000	3,400	2,285
Chad	15,000	3,300	6,400	3,004
Congo	10,800	70,000	22,100	49,248
Dem Rep of Congo	377,700	85,000	23,714	13,674
Gabon	13,400	76,700	70,637	77,252
Kenya	65,000	19,000	31,636	36,260
Mozambique	54,800	18,600	26,088	26,513
Somalia	24,300	6,000	70	70
Tanzania	316,300	80,000	167,000	117,456
Zambia	150,000	41,000	29,231	21,589
Zimbabwe	30,000	43,000	99,100	100,291

Using Minitab, summarize the data and comment on changes in elephant populations since 1979. Include the following in your report.

Analyze the elephant population for each country from 1979 to 2012.
Create a multiple boxplot graph that includes boxplots of the total elephant population observations in each year (1979, 1989, 2007, 2012).
Use the results of your analyses in questions 1 and 2 above to comment on how the populations of elephants have changed.

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