Prepares reports on gasoline prices , Basic Statistics

The average cost of a gallon of unleaded gasoline in Greater Cincinnati was reported to be $2.41 (The Cincinnati Enquirer, February 3, 2006). During periods of rapidly changing prices, the newspaper samples service stations and prepares reports on gasoline prices frequently. Assume the standard de-viation is $.15 for the price of a gallon of unleaded regular gasoline, and recommend the appropriate
sample size for the newspaper to use if they wish to report a margin of error at 95% con dence.

a. Suppose the desired margin of error is $.07.
b. Suppose the desired margin of error is $.05.
c. Suppose the desired margin of error is $.03.

Posted Date: 3/30/2013 7:40:42 AM | Location : United States







Related Discussions:- Prepares reports on gasoline prices , Assignment Help, Ask Question on Prepares reports on gasoline prices , Get Answer, Expert's Help, Prepares reports on gasoline prices Discussions

Write discussion on Prepares reports on gasoline prices
Your posts are moderated
Related Questions

how do i calculate standard deviation for a frequency distribution

Books of original entry Books of original entrance are a record in which the various or many other transactions are initially and formally recorded and serve up as the straight so

#questionw..what is ment by resolance tube

how would we find cumulative frequency for the median of discrete series

what are the types of index numbers?

What is a sole proprietorship? A sole proprietorship is a form of business organization that is owned by one person. The owner is referred to as a sole proprietor. In accoun

A cognitive psychologists knows that concrete words, which easily evoke images (.e.g. "sunset", "truck") are easier to remember than abstract words, but she would like to know if t

if my income for the rest of the month was 2,500 and i recieved 1,200 in cash balance on account where would i put this

why indux number considerd as an economic barrometer