document.write( "Question 872776: mean=120, standard deviation= 9.75, N=1000\r
\n" ); document.write( "\n" ); document.write( "If five people are selected at random, calculate the probability that their mean blood pressure is between 130 and 136.
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Algebra.Com's Answer #526396 by ewatrrr(24785)\"\" \"About 
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mean=120, standard deviation= 9.75, IF this is the Population SD...
\n" ); document.write( "N = 1000 , s = .975 for the 1000 group.
\n" ); document.write( "For 5 chosen at random
\n" ); document.write( "P(130 < xbar < 136)
\n" ); document.write( "P( t < 16/(.975/√5) - P(t < 10/(.975/√5)
\n" ); document.write( "Use DF = 4, t0 find p-value from chart or calculator
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