A study done in 1997 showed that 4.2% of mothers smoked cigarettes during their pregnancy. An obstetrician feels that this percentage is higher now. To test this, the obstetrician takes a sample of 200 mothers and finds that 10 of them smoked during their pregnancy. Test the obstetrician's claim at the a-0.05 level of significance.
A study done in 1997 showed that 4.2% of mothers smoked cigarettes during their pregnancy. An obstetrician feels that this percentage is higher now. To test this, the obstetrician takes a sample of 200 mothers and finds that 10 of them smoked during their pregnancy. Test the obstetrician's claim at the a-0.05 level of significance.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A study done in 1997 showed that 4.2% of mothers smoked cigarettes during their pregnancy. An obstetrician feels that this
percentage is higher now. To test this, the obstetrician takes a sample of 200 mothers and finds that 10 of them smoked during
their pregnancy. Test the obstetrician's claim at the a=0.05 level of significance.
Write your answer in the following form P-Value, Conclusion
Example: 0.15, There is not sufficient evidence that the mean weight of pandas is less than 200 pounds.
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