ney Moran 771218 6:51 PM Homework: Section 7.3 Save Score: 0 of 1 pt 7 of 11 (11
ID: 2947884 • Letter: N
Question
ney Moran 771218 6:51 PM Homework: Section 7.3 Save Score: 0 of 1 pt 7 of 11 (11 complete) Hw Score: 65.45%, 7.2 of 1 1 pts X) 7.3.16 Question Help In a sample of seven cars, each car was tested for nitrogen-oxide emissions ( 0.16, 0.19. Assuming that this emissions for all cars. If the EPA in grams per mlie) and the following results were obtained: 0.18, 0.17,0.15, 0.19, 0.05, representative of the cars in use, construct a 98% confidence interval estimate of the mean amount of nitrogen-oxide equires that nitrogen-oxide emissions be less than 0.165 g/mi, can we safely conclude that this requirement is being met? Click here to view page 1 of the standard normal distniosition e What is the confidence interval estimate of the mean amount of nitrogen-oxide emissions for all cars? Round to three decimal places as needed.) Enter your answer in the edit fields and then click Check Answer Clear All Check Answer remaining To see what to study next, go to your Study PlanExplanation / Answer
The statistical software output for this problem is:
One sample T confidence interval:
? : Mean of variable
98% confidence interval results:
Hence,
98% confidence interval will be:
0.098 g/mi < ? < 0.214 g/mi
Variable Sample Mean Std. Err. DF L. Limit U. Limit Data 0.15571429 0.018498023 6 0.097581133 0.21384744Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.