Question 860961
<pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
ME = {{{2.576(7.8/sqrt(43))}}}
CI: &#956;-ME < u <  &#956; + ME
CI: 37.5-ME < u <  37.5 + ME
CI	z -value
80%     z= 1.2816
90%	z =1.645
92%	z = 1.751
95%	z = 1.96
98%	z = 2.326
99%	z = 2.576