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In a previous poll, 30% of adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Suppose that, in a more recent poll, 328 of 1160 adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Is there sufficient evidence that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased? Use the a= 0.01 significance level. Because npo (1-Po) = 243.6 > 10 and the sample size is can be reasonably assumed to be random, (Round to one decimal place as needed.) less than 5% of the population size, and the sample the requirements for testing the hypothesis are satisfied. What are the null and alternative hypotheses? = 0.30 versus H,: (Type integers or decimals. Do not round.) < 0.30 Но: Find the test statistic, zo- Zo = (Round to two decimal places as needed.)

In a previous poll, 30% of adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Suppose that, in a more recent poll, 328 of 1160 adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Is there sufficient evidence that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased? Use the a= 0.01 significance level. Because npo (1-Po) = 243.6 > 10 and the sample size is can be reasonably assumed to be random, (Round to one decimal place as needed.) less than 5% of the population size, and the sample the requirements for testing the hypothesis are satisfied. What are the null and alternative hypotheses? = 0.30 versus H,: (Type integers or decimals. Do not round.) < 0.30 Но: Find the test statistic, zo- Zo = (Round to two decimal places 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
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In a previous poll, 30% of adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Suppose that, in a more recent poll, 328 of 1160 adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Is there sufficient evidence that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased? Use the a= 0.01 significance level. Because npo (1-Po) = 243.6 > 10 and the sample size is can be reasonably assumed to be random, (Round to one decimal place as needed.) less than 5% of the population size, and the sample the requirements for testing the hypothesis are satisfied. What are the null and alternative hypotheses? = 0.30 versus H,: (Type integers or decimals. Do not round.) < 0.30 Но: Find the test statistic, zo- Zo = (Round to two decimal places as needed.)
Transcribed Image Text:In a previous poll, 30% of adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Suppose that, in a more recent poll, 328 of 1160 adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Is there sufficient evidence that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased? Use the a= 0.01 significance level. Because npo (1-Po) = 243.6 > 10 and the sample size is can be reasonably assumed to be random, (Round to one decimal place as needed.) less than 5% of the population size, and the sample the requirements for testing the hypothesis are satisfied. What are the null and alternative hypotheses? = 0.30 versus H,: (Type integers or decimals. Do not round.) < 0.30 Но: Find the test statistic, zo- Zo = (Round to two decimal places as needed.)
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