**Be sure to determine if SIGMA is known or unknown. 1A. 1B. A random sample of the birth weights of 265 babies born to mothers who did NOT use cocaine during pregnancy has a mean of 6.95 lbs. and a standard deviation of 1.47 lbs. Use your calculator to construct a 95% confidence interval estimate of the mean birth weight for all babies of mother who did not use cocaine during pregnancy. If the weights of babies born to mother who used cocaine during pregnancy was found to be 5.98 lbs. < μ< 6.12 lbs., does cocaine use appear to affect the birth weight of a baby? Explain your answer with two or three sentences.
**Be sure to determine if SIGMA is known or unknown. 1A. 1B. A random sample of the birth weights of 265 babies born to mothers who did NOT use cocaine during pregnancy has a mean of 6.95 lbs. and a standard deviation of 1.47 lbs. Use your calculator to construct a 95% confidence interval estimate of the mean birth weight for all babies of mother who did not use cocaine during pregnancy. If the weights of babies born to mother who used cocaine during pregnancy was found to be 5.98 lbs. < μ< 6.12 lbs., does cocaine use appear to affect the birth weight of a baby? Explain your answer with two or three sentences.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Expert Solution
Step 1
Given that:
Sample size, n=265
Sample mean,
Sample standard deviation, s=1.47
Step by step
Solved in 3 steps with 1 images
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