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I was wondering if you could check my answers...

thanks!

question #4, I got
\[\Large \left( {0.7242,\quad 0.8358} \right)\]

Solve negative 7 over 3, the whole multiplied by x minus 3 equals negative 52.
21
39
45
59

Need help

ok sorry

i just got back

and got it and thanks

are you on 10?

Help

how have you defined the error margin?

Ok ill wait

@Michele_Laino are all the others right?

I'm pondering...

ok np

for example, in question #3 how do you got 745?

can you write your steps, in order to get 745?

ok! do you remember the definition of error margin?

question #3 the standard deviation is:
11.534
so the 95% confidence interval is 11.534* 1.65 = 19

ok thnxs sorry for the late reply

question #5 I got 261, namely, close to the first option

question #3 I got n=751

nice and thnxs!

question #6 I think you are right! we have to determine the new proportion

question #7
I got:
\[\Large \left( {0.24316,\quad 0.35684} \right)\]

the procedure is the same as in the first exercise, we have to apply the binomial distribution

question #8, I got:
n= 504.21, so your answer is right!

awesome! thnxs

our homework is completed!

yah!!1 can u help later? if so, can u give the hours your online

I will stay here for at least 2 hours

ok cool can u help some more then plz?

ok!

one second plz, give me 10 minutes before i upload some more and ty soo much

@Michele_Laino , is #10 right?

I think option 3 only