Confidence interval for the average transit time

Reference no: EM131373604

In given problem, give a 95% confidence interval for the variance of the transit time for all goods.

Problem
A transportation company wants to estimate the average length of time goods are in transit across the country. A random sample of 20 shipments gives x‾ = 2.6 days and s = 0.4 day. Give a 99% confidence interval for the average transit time.

Reference no: EM131373604

Questions Cloud

How many test runs of the new volvo s40 model are required : How many test runs of the new Volvo S40 model are required for determining its average miles-per-gallon rating on the highway to within 2 miles per gallon with 95% confidence, if a guess is that the variance of the population of miles per gallon i..

Explain how concept of an index improve performance : Discuss the concept of an index and explain how they improve performance. Identify and discuss what the most practical and easily applied lesson you learned was. Also, discuss which lesson was the hardest for you to grasp? Why?

What are the implications of multiple generations : What are the implications of multiple generations for managing HSOs/HSs - Which functions of management are most affected by multiple generations in the workforce?

What is required sample size for determining the proportion : What is the required sample size for determining the proportion of defective items in a production process if the proportion is to be known to within 0.05 with 90% confidence? No guess as to the value of the population proportion is available.

Confidence interval for the average transit time : A random sample of 20 shipments gives x‾ = 2.6 days and s = 0.4 day. Give a 99% confidence interval for the average transit time.

Implement a stack class : The backtracking algorithm needs a stack, you should implement a stack class. Each item in the stack is the position of a cell in the maze --- that is, the row and column number of the cell.

Providing care for several patients : 1. A nurse practitioner is providing care for several patients on a medical unit of a hospital. In which of the following patient situations would the nurse practitioner be most likely to rule out hypertension as a contributing factor?

When is it better to allocate an object statically on stack : CPSC 131- In general, when is it better to allocate an object statically on the stack (as opposed to dynamically on the heap)? Give an example of a programming scenario where an object should certainly be stack-allocated.

Construct a confidence interval for average wealth : The following is a random sample of the wealth, in billions of U.S. dollars, of individuals listed on the Forbes "Billionaires" list for 2007.- Construct a 90% confidence interval for the average wealth in $ billions for the people on the Forbes li..

User Account

All Pages