You are given e=0.020 a confidence level of 90% and a sample portion of 85% from a recent survey find the minimum sample size to estimate a population proportiona.1225b.259c.5751d.863

The answer you are looking for is D.863                                                                                      

Option d)863

Step-by-step explanation:

Given that

e=Margin of error = 0.020

Confidence level =90%

zcritical for 90% =1.645

We have margin of error = 1.645 (std dev)/sq rt n

where n = sample size

Since p = 0.85

Std error =

Substitute in margin of error to get

0.020=1.645(0.357)/sqrt n

Simplify to get

n=862.54

Since n cannot be in decimal round off to the next integer

n =863

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d