12.16 In each parts (a)-(c), we have given the likely range for the observed value of a sample
proportion. Based on the given range, identify the educated guess that should be used for the
observed value of p to calculate the required sample size for a prescribed confidence level and
margin of error.
a. 0.4 to 0.7
b. 0.7 or greater
c. 0.7 or less
d. In each parts (a)-(c), which observed values of the sample proportion will yield a larger
margin of error than the one specified if the educated guess is used for the sample size
computation?
Solution
I have not heard of this term educated guess in thiscontext.
There is a term, conservative estimate, which would be thenumber that you enter into the SD
formula for proportions so thatthe SD is maximized.
SD = [p(1-p)]
So the conservative estimate for the SD is to let p =0.5.
The sample size formula is:
z1-/2 = / SE(phat) whichimplies below
n = (z1-/2)2p(1-p) /2
In part a) p = 0.5.
In part b) p = 0.7.
In part c) p = 0.5.
By using these numbers, we would get an upper bound in findingthe sample size calculation.
However, my guess of the definition of an educatedguess is probably not right, because part d
asks for what values ofthe sample proporiton will yield a larger margin or error. I\'musing the
values of p that would guarantee the largest marginof error.
Send me a PM for post a clarification asto the definition of an educated guess.
Thanks,
Mike.
12.New members want to join the EU Please name economic argumen.pdf
1. 12.New members want to join the EU: Please name economic arguments to discuss if a further
enlargement makes sense.
12.New members want to join the EU: Please name economic arguments to discuss if a further
enlargement makes sense.
12.New members want to join the EU: Please name economic arguments to discuss if a further
enlargement makes sense.
Solution
I think we have to close the gap between the richest and poorest states in the EU ignoring micro
states as they have little sway on the average. Although the addition of the west Balkans will be
around 10 million people and by the time the mange to join everything will be quite different
anyway so I wouldn
