We have given that,
1-alpha=0.9
alpha=0.1
Margin error=3%=0.03
Z- value table=1.645
P=0.5
Formula,
Margin error=z*(√(p*(1-p)) /n)
0.03 =1.645*(√0.5*0.5/n)
0.03=1.645*0.5/√n
√n=1.645*0.5/0.03
=27.4167
n=751.68
n=752
Sample size is 752.
A researcher wants to create a 90% confidence interval for the population proportion, with the margin...
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