Problem 6, Automobile emissions (2 points] A state's environmental agency worries that many cars may be violating clean
Posted: Tue Jul 05, 2022 9:21 am
- Problem 6 Automobile Emissions 2 Points A State S Environmental Agency Worries That Many Cars May Be Violating Clean 1 (17.41 KiB) Viewed 12 times
- Problem 6 Automobile Emissions 2 Points A State S Environmental Agency Worries That Many Cars May Be Violating Clean 2 (17.41 KiB) Viewed 12 times
Problem 6, Automobile emissions (2 points] A state's environmental agency worries that many cars may be violating clean air emis- sions standards. The agency hopes to check a sample of vehicles in order to estimate that percentage with a margin of error of 3% and 90% confidence. To gauge the size of the problem, the agency first picks 70 cars and finds 8 with faulty emissions systems. How many should be sampled for a full investigation?