Do part B please. Part A answer is .1711. I want to know how to set up and do pa

Question

Do part B please. Part A answer is .1711. I want to know how to set up and do part B (the answer is 2011.4 if using a z score table, which is what I am using so please use it too). Thanks!

23. Low Birth Weight The University of Maryland Medical Center considers "low birth weights" to be those less than 5.5 lb or 2495 g. Birth weights are normally distributed with a mean of 3152.0 g and a standard deviation of 693.4 g (based on Data Set 3 "Births" in Appendix B). a. If a birth weight is randomly selected, what is the probability that it is a "low birth weight"? 92 b. Find the weights considered to be significantly low using the criterion of a probability of 0.05 or less. How do these results compare to the criterion of 2495 g? c. Compare the results from parts (a) and (b)

Explanation / Answer

b) z - score corresponding to 0.05 area to its left = -1.645

Hence,

Weight that would be considered as significantly low = 3152 - 1.645(693.4) = 2011.4 g

We can see that this value is very less than the actual significantly low weight i.e. 2495 g.

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