What is the neccessary sample size
It is believed that as many as 20% of adults over 50 never graduated high school. We wish to see if this percentage is the same among the 25-30 age group.
Assume we want to cut the margin of error to 3%. What is the neccessary sample size?
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Ravencheck Resources, Inc. is a brokerage of ten salespeople. A productivity survey of the firm's employees indicated the following data:
A friend of mine has the clothing store and sells various lines of shoes. Tell me at the 0.05 level of significance if there is any preference among the lines by customers. If there is the preference, tell me which line(s) are preferred. This stud
How long must the guy wire be if it is to be attached to tower 5 feet from top and is to make the angle of 29 degree with ground.
Local television has quite the interest in who is watching and other statistic is raw numbers of viewers. See below some numbers of viewers for the three major stations and using equal expected frequencies, find out, at the 0.05 alpha, if there is
Describe in plain english the meaning of statement 200=N^-1(P(5)) b). If f(fx) = 350 +15x, compute f^-1(50) illustrate work.
A raffle has a grand prize of a European cruise valued at $13000 with a second prize of a weekend in San Diego valued at $600. If each ticket costs $5 and 10400 tickets are sold, what are the expected winnings far a ticket buyer.
In a survey regarding downloading music, a survey asked 733 internet users if they "ever downloaded music from the internet site that was not authorized by the record company or not" and 25% responded "yes". Develop a 99% confidence interval for t
It is believed that as many as 20% of adults over 50 never graduated high school. We wish to see if this percentage is same among the 25-30 age group.
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