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**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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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**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 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.
Transcribed Image Text:**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 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.
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