Verizon 10:47 PM + mathxl.com myEFSC 7.2 instructur Do Homew.. 7.4 7.3 Do Hom To
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Verizon 10:47 PM + mathxl.com myEFSC 7.2 instructur Do Homew.. 7.4 7.3 Do Hom Topic: DB4... Next Gene... kMobil... Spring 2018 STA 2023-02Z Files Erica Felix | 3/12/18 10:47 PM Homework: 7.3 Score: 0 of 1 pt 7.3.35 Save 7 of 18 (0 complete) HW Score: 0%, 0 of 36 pts Assigned Media Question Help Using the simple random sample of weights of women from a data set, we obtain these sample statistics: n suggests that the population of weights of women has a standard deviation given by 2.81 lb. a. Find the best point estimate of the mean weight of all women. b, Find a 95% confidence interval estimate of the mean weight of all women. 35 and x-141.57 lb. Research from other sources a. The best point estimate is Db. Type an integer or a decimal.) Enter your answer in the answer box and then click Check Answer Clear All Check AnswerExplanation / Answer
Solution:- Given that n = 35 , X = 141.57 , = 32.81, Z = 1.96
a. The best point estimate is 141.57 lb.
b. 95% confidence interval estimate of the mean weight of all women : X +/- Z * s/sqrt(n)
: 141.57 +/- 1.96* 32.81/sqrt(35)
: 130.70 , 152.44
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