In a previous nationwide poll of a large country, 46% 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, 1097 adults with children under the age of 18 were selected at random and 483 of the 1097 adults 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= 0.05 significance level. ... Assume that the population is large and the sample is obtained randomly. Because npo (1- Po) : 10 %3D and the sample size is 5% of the population size, the requirements for testing the hypothesis satisfied. (Round to one decimal place as needed.)

In a previous nationwide poll of a large country, 46% 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, 1097 adults with children under the age of 18 were selected at random and 483 of the 1097 adults 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= 0.05 significance level. ... Assume that the population is large and the sample is obtained randomly. Because npo (1- Po) : 10 %3D and the sample size is 5% of the population size, the requirements for testing the hypothesis satisfied. (Round to one decimal place as needed.)

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...

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