Suggest the mean loa has increased

Assignment Help Basic Statistics

Reference no: EM131432402

Sports and Leisure The length of a motorboat is traditionally measured in two ways. The distance along the centerline from the outside of the front hull to the rear is the length overall (LOA). The length of waterline, or load waterline (LWL), is the length of the boat on the line where the boat meets the water.

Members of the Community Association in the lakeside city of Vermilion, Ohio, are concerned that residents are using bigger boats, contributing to more noise and water pollution. Past registration records indicate the mean LOA for boats allowed on the lake is 35 feet.

A random sample of 41 boats on the lake was obtained, and each LOA was carefully measured. The sample mean LOA was x 5 36.22 feet. Assume σ² = 5.7 ft².

a. Is there any evidence to suggest the mean LOA has increased? Use a = 0.01.

b. Does your answer to part (a) change if a = 0.1? Why or why not?

Reference no: EM131432402

Questions Cloud

Suggest the mean water table is less than 12.4 feet : Is there any evidence to suggest the mean water table is less than 12.4 feet? Assume the underlying distribution is normal, σ = 0.07 and use a = 0.025.

Discuss methods for identifying perspective clients : Create a 10- to 15-slide Microsoft PowerPoint presentation in which you develop a Sales Prospecting Strategy. In this presentation you will include the following: Discuss methods for identifying perspective clients. Explain when and where to start ..

Why is this an ethical dilemma : Is Angela's current situation one that Dr. Hernandez should have anticipated in establishing group therapies designed to treat addiction and substance dependence? Does Dr. Hernandez have a professional responsibility for Angel's safety outside the..

How can unforeseen circumstances effect the economy : The link above will take you to the "Fed Chairman Game." In this game, you are appointed as the Chair of the Board of Governors of the Federal Reserve by the President in order to implement monetary policy. How can unforeseen circumstances effect t..

Suggest the mean loa has increased : Is there any evidence to suggest the mean LOA has increased? Use a = 0.01.- Does your answer to part (a) change if a = 0.1? Why or why not?

Network design and the location : Create an 150 word narrative. The diagram have 4 small office and data center. Showing the frequencies/channels that will be used for your network design and the location where the frequencies/channels will be use.What type IEEE wireless network y..

An introduction to the genre and its expectations : White Papers: An Introduction to the Genre and Its Expectations - written to individuals in a particular industry or field of study, but not an organization you are a part of. The white paper could address a problem you are attempting to solve in t..

What are implications of the global baby bust for marketers : What are the implications of the global baby bust for marketers of consumer goods? What are the implications of the global baby bust for marketers who sell to governments?

Is mean composite indicator for brazilian natural is greater : Assume the population standard deviation is 8.6 U.S. cents/lb. Is there any evidence to suggest that the mean composite indicator for Brazilian Natural is greater than 126.96? Use a = 0.05. Write a Solution Trail for this problem.

User Account

All Pages