document.write( "Question 1121046: The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual.\r
\n" ); document.write( "\n" ); document.write( "For a sample of n equals=75, find the probability of a sample mean being greater than 216 if μ=215 and σ=6.1 ______\r
\n" ); document.write( "\n" ); document.write( "(Round to four decimal places as needed.)
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Algebra.Com's Answer #737073 by Boreal(15235)\"\" \"About 
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z>(x bar-mean)/sigma/sqrt(n)
\n" ); document.write( ">(216-215)/6.1/sqrt(75)
\n" ); document.write( ">1*sqrt(75)/6.1
\n" ); document.write( ">1.42
\n" ); document.write( "Probability z>1.42 is 0.0778
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