![subject](/tpl/images/cats/mat.png)
Mathematics, 12.03.2021 15:30 papasully1
In order to determine if engine oil EEEA B C 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 , and the other half received a generic brand of oil. The resulting data showed that vehicles that received engine oil 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?
a. Engine oil E improves gas mileage better than any other available engine oil.
b. Engine oil E will cause a significant improvement in gas mileage.
c. Engine oil E will improve the gas mileage of any vehicle that uses it.
d. Engine oil E is likely to improve the gas mileage of cars that use it.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:50, BrainzOli7408
If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?
Answers: 2
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00, Islandgirl67
What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:20, oofoofoof1
Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done
Answers: 2
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:30, niquermonroeee
Abaseball team drinks 10/4 gallons of water during a game. which mixed number represents the gallons of water consumed? a) 1 1/2 gallons b) 2 1/2 gallons c) 2 3/4 gallons d) 3 1/2 gallons
Answers: 2
You know the right answer?
In order to determine if engine oil EEEA B C will improve gas mileage, a research study was conducte...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 05:01
![Konu](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 05:01
![Konu](/tpl/images/cats/fizika.png)
Physics, 20.09.2020 05:01
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 20.09.2020 05:01
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 05:01
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/biologiya.png)
Biology, 20.09.2020 05:01