a marketers want to know about the differences between mens\' and womens use of
ID: 3395392 • Letter: A
Question
a marketers want to know about the differences between mens' and womens use of the internet. A research poll in April 2009 from a random sample of adults fund that 2368 of 3009 men use the internet, at least occasionally, while 2384 of 380 women did.
a) find the proportions of mena nd women who said they use the internet at least ocasionally
B) what is the difference in proportions
C) what is the standard error of the difference
Find the 95% confidence interval for the difference between percentages of usage by men and women nationwide.
a) Let p^ 1 be the sample proportion of men who use the internet ocassionaly and let p^2 be the sample proportion of women.
P^1= _____%
p^2= _______%
p^1-p^2=
SE(p^1-p^2)=
The confidence interval is _____, ______
Explanation / Answer
Information regarding the sample of women is incorrect.2384<380
A) The proportion of men who said they use the internet at least ocasionally=0.786972
a)Let p^ 1 be the sample proportion of men who use the internet ocassionaly,then p^ 1=78.69%
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