Question 1197916
<font color=black size=3>
E = margin of error
E = z*sigma/sqrt(n)
1.471 = z*16/sqrt(110)
1.471 = z*1.525540
z = 1.471/1.525540
z = 0.964249
z = 0.96


Use a calculator like this
<a href = "https://davidmlane.com/normal.html">https://davidmlane.com/normal.html</a>
to find that P(-0.96 < z < 0.96) = 0.6629 approximately
About 66.29% of the area under the curve is between z = -0.96 and z = 0.96


The confidence level is about 66%
</font>