document.write( "Question 1136579: (For this question, consider z values greater than 3 as atypical).
\n" ); document.write( "A population of scores forms a normal distribution with a mean of μ = 80 and σ =20. Is it atypical to get a mean of 84 in a sample of n=4 scores?
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Algebra.Com's Answer #754356 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\"z+=+%28x-mu%29%2F%28sigma%2Fsqrt%28n%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"z+=+%2884-80%29%2F%2820%2Fsqrt%284%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"z+=+%2884-80%29%2F%2820%2F2%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"z+=+%2884-80%29%2F%2810%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"z+=+4%2F10\"\r
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\n" ); document.write( "\n" ); document.write( "\"z+=+0.40\"\r
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\n" ); document.write( "\n" ); document.write( "This z score is not larger than z = 3, so it is not atypical (aka unusual) to have a sample of 4 scores lead to a sample mean of 84
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