Homework Help: statistics

Posted by ree on Sunday, December 16, 2012 at 2:12am.

The tires are also tested for failure during a road test where they are subjected to road hazards. A test of 600 tires resulted in the failure of 30 tires.

a) Find a 95% confidence interval on the proportion of failures for the new formula of of rubber.

b) The proportion of failures for the existing line of tires is p=.1 . Can we conclude the new line of tires is better? (use alpha=.05)

No one has answered this question yet.

Answer this Question

Related Questions

Physics - A car goes around a curve on a road that is banked at an angle of 32.5...
physics - A car goes around a curve on a road that is banked at an angle of 30.5...
Physics - A car goes around a curve on a road that is banked at an angle of 33.5...
Physics - A car goes around a curve on a road that is banked at an angle of 30 ...
Physics - A car goes around a curve on a road that is banked at an angle of 30 ...
physics - When you step on the accelerator to increase the speed of your car, ...
Physics - a driver sees a horse on the road and applies the brakes so hard that ...
PHYSICS - A bicycle with 0.80 -diameter tires is coasting on a level road at 5.6...
physics - A 1,660 kg car is parked on a hill with a slope of 8.0°. Its ...
physics - what is the maximum speed with which a car can round a turn of radius ...

For Further Reading

First Name:
School Subject:
Answer: