Refer to the Journal of Petroleum Geology (April 2010) study of the environmental factors asso- ciated with biodegradation in crude oil reservoirs. Recall that 16 water specimens were randomly selected from various locations in a reservoir on the floor of & mine and that the amount of dioxide (milligrams /liter) a measure of biodegradation as well as presence of oil were determined for each specimen. These data are reproduced in the accompanying table. Dioxide Amount 3.3 0. 13 0.4 0.1 4.0 0.3 0.2 24 2.4 14 05 0.2 4.0 4.0 4.0 Crude Oil Present No Yes Yes Yes No No No Yes No No No Yes Yes No No No Conduct a test to determine if the true mean amount of dioxide present in water specimens that contained oil was less than 3 milligrams/liter: Use 0.1- Repeat part & for water specimens that did not contain oil.
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Let μ1 be the true mean amount of dioxide present in water specimens that contained oil, and μ2 be the true mean amount of dioxide present in water specimens that did not contain oil. Null hypothesis (H0): μ1 >= 3 Alternative hypothesis (H1): μ1 < 3 Show more…
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