According to a study in a previous year, 55.0% of households nationwide used natural gas for heating during a year. Recently, a survey of 3,200 randomly selected households showed that 56.0% used natural gas. Use a 0.05 significance level to test the claim that the 55.0% national rate has changed. Formulate the null and alternative hypotheses. Choose the correct answer below. OA. Ho: p=0.55 Ha: p<0.55 ... OC. Ho: p0.55 Ha: p=0.55 O B. Ho: p=0.55 Ha: p>0.55 O D. Ho: p=0.55 Ha: p0.55
According to a study in a previous year, 55.0% of households nationwide used natural gas for heating during a year. Recently, a survey of 3,200 randomly selected households showed that 56.0% used natural gas. Use a 0.05 significance level to test the claim that the 55.0% national rate has changed. Formulate the null and alternative hypotheses. Choose the correct answer below. OA. Ho: p=0.55 Ha: p<0.55 ... OC. Ho: p0.55 Ha: p=0.55 O B. Ho: p=0.55 Ha: p>0.55 O D. Ho: p=0.55 Ha: p0.55
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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