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ly, 5% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that the percentage of mothers who smoke 21 cigarettes 5 of them smoked 21 or more cigarettes during pregnancy. Test the researcher's statement at the a = 0.05 level of significance. the null and alternative hypotheses? = 0.05 versus H,: P < 0.05 egers or decimals. Do not round.) npo (1- Po) =O < 10, the normal model may not be used to approximate the P-value. o one decimal place as needed.)

ly, 5% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that the percentage of mothers who smoke 21 cigarettes 5 of them smoked 21 or more cigarettes during pregnancy. Test the researcher's statement at the a = 0.05 level of significance. the null and alternative hypotheses? = 0.05 versus H,: P < 0.05 egers or decimals. Do not round.) npo (1- Po) =O < 10, the normal model may not be used to approximate the P-value. o one decimal place as needed.)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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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 140 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 versus H,: Họ: P (Type integers or decimals. Do not round.) 0.05 Весause npo (1 - Pо) -D < 10, the normal model may not be used to approximate the P-value. (Round to one decimal place as needed.)
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 140 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 versus H,: Họ: P (Type integers or decimals. Do not round.) 0.05 Весause npo (1 - Pо) -D < 10, the normal model may not be used to approximate the P-value. (Round to one decimal place as needed.)
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