Answer:
The margin of error is 1.76
Explanation:
The formula for calculating:
ME= z*[tex]\frac{σ}{\sqrt{n} }[/tex]
Where:
z= 90%= The level of confidence of the results (also called interval or degree of confidence, generally set at 95% in the survey industry).In this case, it is 1.65
n= sample= 14
σ= standard deviation of $4.
ME= z*[tex]\frac{σ}{\sqrt{n} }[/tex]
ME= 1.65*[tex]\frac{4}{\sqrt{14} }[/tex]
ME=1.65* 1.069
ME=1.76
