document.write( "Question 796691: on the final exam in a large statistics class the average score was 76 with a standard deviation of 7. assuming a normal population, what scores were so deviant that their probability of occurrence was .05 or less? (hint: .025 in each tail) \n" ); document.write( "
Algebra.Com's Answer #481535 by stanbon(75887)\"\" \"About 
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on the final exam in a large statistics class the average score was 76 with a standard deviation of 7. assuming a normal population, what scores were so deviant that their probability of occurrence was .05 or less? (hint: .025 in each tail)
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\n" ); document.write( "Find the z-value with a left tail of 2.5%
\n" ); document.write( "z = 1.96
\n" ); document.write( "Use x = z*s + u
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\n" ); document.write( "x = -1.96*7+76 = 62.28 (lower limit score)
\n" ); document.write( "x = +1.96*7+76 = 89.72 (upper limit score)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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