in order to determine if engine oil e will improve gas mileage, a research study was conducted. from a wide range of vehicle makes, models, and model years, 400 vehicles were randomly selected. half of the vehicles were chosen at random to receive oil e, and the other half received a generic brand of oil. the resulting data showed that vehicles that received engine oil e had substantial improvements in gas mileage as compared to those that received the generic brand of engine oil. which of the following can best be concluded based on the design and results of the research?
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SAT, 25.06.2019 16:30, barbaragomez27
Earth's atmosphere is unique among the planets and is able to support life because it contains a large amount of a) oxygen b) helium c) methane d) carbon dioxide
Answers: 2
SAT, 29.06.2019 08:30, bossboybaker
Mr. chiu made a dot plot after asking his students a question. based on the dot plot, which statements are correct? check all that apply. eleven students answered mr. chiu's question. twelve students answered mr. chiu's question. three people studied for two hours. three people studied for three hours. everyone who responded studied for at least one hour. four people studied for four or more hours
Answers: 1
in order to determine if engine oil e will improve gas mileage, a research study was conducted. from...
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