Solution:
Given that,
n = 316
= 0.05
1 -
= 1 - 0.05= 0.95
=
= 0.05
=
( 1 -
) / n
=
0.05 * 0.95 / 316
= 0.0388
= 0.0388
Differ Less than 0.04 = 0.05 - 0.01 =0.04 , 0.05 + 0.04 =0.09
P(
< 0.04 )
P ( 0.01 <
< 0.09 )
P ( 0.01 - 0.05 / 0.0388 ) < (
-
/
) < ( 0.09 - 0.05 / 0.0388 )
P ( - 0.04 / 0.0388 < z < 0.04 / 0.0388 )
P (-1.03 < z < 1.03 )
P ( z < 1.03 ) - p ( z < -1.03 )
Using z table
= 0.8485 - 0.1515
= 0.6970
Probability = 0.6970
please help, I am on a time crunch! Thank you in advance!!(: Goofy's fast food center...
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