Statistics Solutions

[Steps Shown] According to a study, the mean birth weight of babies born to a sample of 202 mothers who used marijuana during pregnancy was 2,980 grams

Question: According to a study, the mean birth weight of babies born to a sample of 202 mothers who used marijuana during pregnancy was 2,980 grams with a standard deviation of 66?. grams. (One pound is equal to 454 grams approximately.) The mean birth weight of babies born to another sample of 895 mothers who did not use marijuana during pregnancy was 3,260 grams with a standard deviation of 616 grams

  1. Construct 95 % confidence intervals for each and test to see if the mean birth weight of babies born to mothers who use marijuana during pregnancy is lower than the mean birth weight of babies born to mothers who do not use marijuana during pregnancy. Explain your reasoning. b) Give the point estimate for the mean birth weight of mothers who used marijuana. c) Interpret the meaning of the 95 percent confidence interval for mothers who used marijuana. d) State the maximum error and interpret the meaning of the maximum error of estimate in the confidence interval for mothers who did not use marijuana.

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    Solution: The downloadable solution consists of 3 pages
    Deliverable: Word Document


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