Tuesday
March 31, 2015

Homework Help: Statistics

Posted by Bob on Monday, November 30, 2009 at 10:33pm.

A car manufacturer is interested in conducting a study to estimate the mean stopping distance for a new type of brakes when used in a car that is traveling at 60 miles per hour. These new brakes will be installed on cars of the same model and the stopping distance will be observed. The cost of each observation is $100. A budget of $12,000 is available to conduct the study and the goal is to carry it out in the most economical way possible. Preliminary studies indicate that s=12 feet for stopping distances.

(a) Are sufficient funds available to estimate the mean stopping distance to within 2 feet of the true mean stopping distance with 95% confidence? Explain your answer.

(b) A regulatory agency requires a 95% level of confidence for an estimate of mean stopping distance that is within 2 feet of the true mean stopping distance. The car manufacturer cannot exceed the budget of $12,000 for the study. Discuss the consequences of these constraints.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - A car manufacturer is interested in conducting a study to estimate ...
statistics - im so confused! please help! 3. A car manufacturer is interested in...
math - predicting the stopping distance for a car traveling 45 miles per hour ...
Physics Conservation of Energy - A car traveling at 20 miles/hour stops in a ...
Algebra - The stopping distance D in feet for a car traveling at x miles per ...
Physics - A car traveling at 20 m/s applies the brakes. The coefficients of ...
Math - The formula s = the square root of 18d can be used to fnd the speed s of ...
algebra - The stopping distance d of a car after the brakes are applied directly...
Math - The distance require to stop a car varies directly as the square of its ...
math - The stopping distance of a car after the brakes are applied varies ...

Members