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a) What is the probabsity that a randorrly selected poognancy lasts less than 260 days? The probubility that a randonly selecled pregnancy lass less than 260 days is approximately (Round lo tosir decimal places as needed) nierpet this probabily. Select the corect cholice below and rain the answer bax within your choloc. (Round to the nearest integet as needed) pregnances to last more than 200 days. B. It 100 ptegnant indivdeals were selected independerey from this population, we would expect pregandes lo lastiess than 200 days. C. I 100 pregnant indwduals were selected independency from tris population, we would expect pregnancies to last exactiy 260 days (b) Suppest a fandom sarole of 15 human pregnancles is obtained Describe the sampling disbibutlon of the sample mean iength of pregnancles The samping distibution of x is with k= and x. (Type inlegers or oecinals rounded to four decingl places as meded) (c) Whal is the probabity thut a random swmple of 15 pregnaries has a mean geslation period of 260 days or losa? The probabily that the mean o' a random tample of 15 prognancies is less than 260 days is approximatey (Round to for decina places as needed) verpret this probabily select the correct cholce below and sti in the answer box within your choice. (Reund to the nearest integet as needed) A. It 100 independent tandom nampies of size n=15 pregnancies were obtained tion this population, wo would expect sampie(s) to hove a sample mean of 260 days or loss 8. If 100 independent randort samples of stre n=15 pregnandics were obtained torn this population, we would expect sample(s) to have a sample mean of exacty 260 days. C. 18100 incependent random sampes of size n * 15 prepuncies were oblained thon tis popuator, we would cxpect sampie(s) to towe a sample rean of 260 days of more: (d) What is the probability that a rancom sarple of 41 preghancies hat a reesn gestanan period of 260 cays or less? The probaeilfy that the rrean di a random sample of 41 peopnandes is less than 260 days is approxmately (Rlound io loar decmar paces as needed) (Piouns bo the nearest integer as neoded) sample(s) to have a sample mean of 260 days er less. sample(s) to have a sampie mean of 260 days or more. fample(s) to have a sample mean of exacty 200 days (e) Whar migh you cosouse if a random samplo of 41 perphancies resulled in a mean gestaion period of 260 days or less? fintesit woud be so fre sample weer caine from a population ufrose masn gestason pentod is: 200days (Round to four dediral plasen as neteded)