document.write( "Question 430255: Survey Results reveal that 45% of patients screened for a virus test positive. from a random sample of 35 patients, estimate the probability that
\n" ); document.write( " is it unusual for 9 to test positive? explain.
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Algebra.Com's Answer #298820 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi
\n" ); document.write( "Survey Results reveal that 45% of patients screened for a virus test positive
\n" ); document.write( " p = .45 q = .55
\n" ); document.write( "random sample of 35 patients
\n" ); document.write( "mean = .45*35 = 16 expected average number to test positive..
\n" ); document.write( "SD = sqrt(35*.55*.45) = ~3
\n" ); document.write( "P(9 test positive)is less than 2 SD left of mean ..very small probability < .02\r
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