statistics help please

timer Asked: Jul 11th, 2015

Question description

The descriptive statistics for annual salaries from a random sample of microbiologist from two regions are shown below.  Construct a 95% confidence interval for the difference between mean annual salaries

X1=$104,710, N1= 39, σ1= $9,000, X2= $85,240, N2 = $44, σ2= $9,020

Complete the 95% confidence interval for U1-U2 below. 

$_____<U1 – U2< $________

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