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Z_E_week6lab - Math 221 Week 6 Lab Submitted by Eric...

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Math 221 Week 6 Lab Submitted by: Eric Zakrzewski Part 1. Normal Distributions and Birth Weights in America A. It appears to be 7.69 or 40 weeks due to the mean line placement B. It appears to be 5.71 or 32-35 weeks due to the mean line placement C. It appears to be 7.79 or 41 weeks due to the mean line placement Gestation Period Mean Birth Weight Standard Deviation Under 28 Weeks 1.88 1.19 0.998825 28 to 31 Weeks 4.07 1.87 32 to 35 Weeks 5.73 1.48 0.438251 36 Weeks 6.46 1.2 37 to 39 Weeks 7.33 1.09 0.046586 40 Weeks 7.72 1.05 41 Weeks 7.83 1.08 42 Weeks and over 7.65 1.12 0.027452 A. 0.999 or 99% B. 0.438 or 43.8% C. 0.047 or 4.7% D. 0.027 or 2.7% NORMDIST( 5.5, mean,standard,true) Gestation Period Mean Birth Weight Standard Deviation Under 28 Weeks 1.88 1.19 28 to 31 Weeks 4.07 1.87 32 to 35 Weeks 5.73 1.48 36 Weeks 6.46 1.2 37 to 39 Weeks 7.33 1.09 8.72 6891 40 Weeks 7.72 1.05 41 Weeks 7.83 1.08 42 Weeks and 7.65 1.12 9.08
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over 5338 A. 8.73 lb B. 9.09 lb NORMINV( 0.9, mean, standard deviation) Gestation Period Mean Birth Weight Standard Deviation Under 28 Weeks 1.88 1.19 28 to 31 Weeks 4.07 1.87 32 to 35 Weeks 5.73 1.48 0.98642 9 0.57237 8 0.
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