Problem#1 13. Eating Together In December 2001, 38% of adults with chil- dren under the age of 18 reported that their family atc dinner together 7 nights a week. In a recent poll, 403 of 1,122 adults with children under the age of 18 reported that their family ate dinner together 7 nights a week. Has the proportion of families with children under the age of 18 who eat dinner together 7 nights a week decreased? Use the a= 0.05 significance level. Answers: Fail to reject H0: z(critical) = -1.645, z = -1.4536

Problem#1 13. Eating Together In December 2001, 38% of adults with chil- dren under the age of 18 reported that their family atc dinner together 7 nights a week. In a recent poll, 403 of 1,122 adults with children under the age of 18 reported that their family ate dinner together 7 nights a week. Has the proportion of families with children under the age of 18 who eat dinner together 7 nights a week decreased? Use the a= 0.05 significance level. Answers: Fail to reject H0: z(critical) = -1.645, z = -1.4536

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Payback Period

Payback period analysis is a method used to determine the relative time value of a project. It measures the time that a project will take to return its initial investment. The total time taken by the project to return the initial investment made for the project is called the payback period.

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Hypothesis Testing: Proportions
Problem#1
13. Eating Together In December 2001, 38% of adults with chil-
dren under the age of 18 reported that their family ate dinner
together 7 nights a week. In a recent poll, 403 of 1,122 adults
with children under the age of 18 reported that their family ate
dinner together 7 nights a week. Has the proportion of families
with children under the age of 18 who eat dinner together 7
nights a week decreased? Use the a = 0.05 significance level.
Answers: Fail to reject H0: z(critical) = -1.645, z = -1.4536

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