Statistics homework help please :(?

Posted on 2014-04-21 06:33:00 in Statistics by ?

I am very confused.



Using the random sample of weights from a data set. we obtain sample statistics n=35 and point estimate x=143.51. Research from other studies show the standard deviation is 31.82



a. find the best point estimate of mean weight of woman

b. find 90% confidence interval estimate



any help is great or a formula on how to do this

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