Confidence interval for population average miles per gallon

Reference no: EM131372384

In given problem, do we need to assume that the population of miles-per-gallon values is normally distributed? Explain.

Problem
A car manufacturer wants to estimate the average miles-per-gallon highway rating for a new model. From experience with similar models, the manufacturer believes the miles-per-gallon standard deviation is 4.6.

A random sample of 100 highway runs of the new model yields a sample mean of 32 miles per gallon. Give a 95% confidence interval for the population average miles-per-gallon highway rating.

Reference no: EM131372384

Questions Cloud

Identify a total compensation plan for an organization : HRM 324/HRM324:Write a paper, in which you identify a total compensation plan for an organization focused on internal equity, and a total compensation plan for an organization focused on external equity.Identify advantages and disadvantages of int..

Confidence interval for population average miles per gallon : A random sample of 100 highway runs of the new model yields a sample mean of 32 miles per gallon. Give a 95% confidence interval for the population average miles-per-gallon highway rating.

Discuss the judicial selection process of your state texas : Discuss the judicial selection process of your state (Texas). Include, at a minimum, the qualifications and steps that are taken in order to select judges for the different kinds of courts within your specific state.

Design and build a gui for a text editor : Consider functions for formatting (font faces, style, and size) and a character/ word-count function. You do not need to implement the load and save functions just yet-you may like to wait with that until you have read the next chapter.

Ms project familiarization : Give your opinion on how easy or difficult MS Project seems to be from a user experience standpoint. Suggest at least two (2) challenges you foresee in using MS Project in this course. Describe why it is important to use a tool like MS Project instea..

Select two out of the four approaches to job design : HRM500/HRM 500:You are the HR manager for a small retail company that sells a high volume of products over the Internet. Your company is growing rapidly due to increased Internet sales. Your company prides itself on providing high-quality products..

Seasonal club and closes its outdoor operations : H1 is a seasonal club and closes its outdoor operations between November and February. These four months are critical to plan new venues and coordinate member activities for the upcoming season. The management operations and the catering tasks of 9 a..

Explain financial reporting : ACCT71-600ACCOUNTING PRINCIPLES- Identify what Accounting is & why it is important and explain Financial Reporting - common financial statements & what they report to users

User Account

All Pages