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)![]() ![]() ![]() You can put this solution on YOUR website! 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( "----- \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 \n" ); document.write( "----- \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) \n" ); document.write( "=========== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========== \n" ); document.write( " |