document.write( "Question 1086889:  a)	determine which distribution you would use to determine the critical value (normal distribution, t distribution, or neither) and state the critical value
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document.write( "b)	calculate the margin of error for the given confidence level if possible.  If this is not possible, indicate what would be required in order to perform the calculation\r
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document.write( "Normally distributed population with σ = 40, n = 20, 98% confidence level.
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| Algebra.Com's Answer #701146 by Boreal(15235)     You can put this solution on YOUR website! Normal distribution with known sd. \n" ); document.write( "98% CI uses z=2.33 \n" ); document.write( "interval width is +/-2.33*40/sqrt (20)=+/-2.33*8.94=+/-20.84 \n" ); document.write( " \n" ); document.write( " |