stan Hep Suppose babies born after a gestaion period of lo 35 weekshave a mean w

Question

stan Hep Suppose babies born after a gestaion period of lo 35 weekshave a mean weightof2800 gamma anda standard deviation areuogams while babiesbam anter a gestation periode 40 reis have a mean weloh of xoa gums and a standard deviation el 45 grams Ma 32 week sestation period baby weighs 3100 grams and a 41week gostation period baby weighs 3300 gamm, sind he comespandingzscores Which baby weighs more relatvetone period? The 32 week gestation period baby weighs 26800 standard devanons the mean The eek gruaion period baby weighs 0 standard deviations the mean Round two decimal places as needed) Which baby weighs teatrely more? O A The baby born in week 32 does inca score is The baby bom in week 41 does since z score in smaler OC. The baby born in weeks does since tsz-soare larger. o D. The baby bom in week 41 does since scare es a a O Type here to seara

Explanation / Answer

Mean weight of 32- week gestation period baby = 2800 gm

standard deviation of weight of 32-week gestation period baby = 600 gm

Mean weight of 40 week gestation period baby = 3000 gms

standard deviation of weight of 40 week gestation period baby = 445 gms

weight of 32 week period = 3100 grams

so Z - value = (3100 - 2800)/600 = 0.5

so the 32 week gestation period baby weighs 0.5 standard deviation above the mean.

weight of 41 week period baby = 3300 grams

so Z_ value = ( 3300 - 3000)/ 445 = 0.6742

so the 32 week gestation period baby weighs 0.6742 standard deviation above the mean.

The baby of 41 week gestation period weighs relatively more since its z- score is larger.

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