finds that 5 of them smoked 21 or more cigarettes during pregnancy. Test the researcher's statement at the a = 0.05 level of significance. What are the null and alternative hypotheses? Ho: P = 0.05 versus H,: p < 0.05 (Type integers or decimals. Do not round.) Because npo (1- Po) =O 10, the normal model be used to approximate the P-value. (Round to one decimal place as needed.)
finds that 5 of them smoked 21 or more cigarettes during pregnancy. Test the researcher's statement at the a = 0.05 level of significance. What are the null and alternative hypotheses? Ho: P = 0.05 versus H,: p < 0.05 (Type integers or decimals. Do not round.) Because npo (1- Po) =O 10, the normal model be used to approximate the P-value. (Round to one decimal place as needed.)
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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
Transcribed Image Text:Previously, 5% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that the percentage of mothers who smoke 21 cigarettes or more is less than 5% today. She randomly selects 125 pregnant mothers and
finds that 5 of them smoked 21 or more cigarettes during pregnancy. Test the researcher's statement at the a = 0.05 level of significance.
What are the null and alternative hypotheses?
< 0.05
Họ: p = 0.05 versus H,:
(Type integers or decimals. Do not round.)
Because npo (1- Po) =|| 1o, the normal model
be used to approximate the P-value.
(Round to one decimal place as needed.)
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