(Round up to the nearest whole number.)
I need help with A,B and C Thank you
Solution :
Given that,
= 1 - = 0.5
margin of error = E = 0.08
a) At 98% confidence level
= 1 - 98%
=1 - 0.98 =0.02
/2
= 0.01
Z/2
= 2.326
sample size = n = (Z / 2 / E )2 * * (1 - )
= (2.326 / 0.08)2 * 0.5 * 0.5
= 211.33
sample size = n = 212
b) margin of error = E = 0.05
sample size = n = (Z / 2 / E )2 * * (1 - )
= (2.326 / 0.05)2 * 0.5 * 0.5
= 541.02
sample size = n = 542
c) margin of error = E = 0.01
sample size = n = (Z / 2 / E )2 * * (1 - )
= (2.326 / 0.01)2 * 0.5 * 0.5
= 13525.69
sample size = n = 13526
(Round up to the nearest whole number.) I need help with A,B and C Thank you...
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