A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 one year ago
In a sample of seven cars, each car was tested for nitrogenoxide emissions (in grams per mile) and the following results were obtained: 0.08, 0.18, 0.12, 0.16, 0.14, 0.15, 0.11. Assuming that this sample is representative of the cars in use, construct a 98% confidence interval estimate of the mean amount of nitrogenoxide emissions for all cars. If the EPA requires that nitrogenoxide emissions be less than 0.165 g/mi, can we safely conclude that this requirement is being met?
What is the confidence interval estimate of the mean amount of nitrogenoxide emissions for all cars? __g/mi < µ < __g/mi
Can we safely conclude that the requirement that nitrogenoxide emissions be less than 0.165 g/mi is being met?
a. No, it is possible that the requirement is being met, but it is also very possible that the mean is not less than 0.165 g/mi
b. No, because the confidence interval does not contain 0.165 g/mi
c. Yes, we can definitely conclude that the requirement is met for all cars.
d. Yes, because the confidence interval contains 0.165 g/mi
 one year ago
In a sample of seven cars, each car was tested for nitrogenoxide emissions (in grams per mile) and the following results were obtained: 0.08, 0.18, 0.12, 0.16, 0.14, 0.15, 0.11. Assuming that this sample is representative of the cars in use, construct a 98% confidence interval estimate of the mean amount of nitrogenoxide emissions for all cars. If the EPA requires that nitrogenoxide emissions be less than 0.165 g/mi, can we safely conclude that this requirement is being met? What is the confidence interval estimate of the mean amount of nitrogenoxide emissions for all cars? __g/mi < µ < __g/mi Can we safely conclude that the requirement that nitrogenoxide emissions be less than 0.165 g/mi is being met? a. No, it is possible that the requirement is being met, but it is also very possible that the mean is not less than 0.165 g/mi b. No, because the confidence interval does not contain 0.165 g/mi c. Yes, we can definitely conclude that the requirement is met for all cars. d. Yes, because the confidence interval contains 0.165 g/mi

This Question is Closed

StClowers
 one year ago
Best ResponseYou've already chosen the best response.0bar x = 0.08+0.12+0.16+0.14+0.15+0.11/7 = 0.94/7 = .13428 is how far I got!! Im stuck here!! Can someone please show me how to input this into the Ti84??
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.