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A sociologist claims that children spent more time watching television in 1981 than children do today. A study was conducted in 1981 to find watched television on weekdays. Recently, a similar study was conducted. The results of these studies (in hours per weekday) are shown b population standard deviation is 0.6 for 1981 and 0.7 for today. At a = 0.05, can you support the sociologist's claim? Complete parts (a) thro Full data set O 1981 3.5 2.5 2.6 2.7 2.3 1.3 2.1 2.9 2.6 1.6 2.8 2.2 2.9 1.3 3.3 2.6 3.1 2.5 1.6 2.7 1.7 1.6 2.6 2.1 1.7 1.4 3.1 2.3 2.2 1.4 Recently 2.3 2.1 1.3 1.9 2.6 0.9 1.8 0.9 2.2 1.2 0.9 0.7 2.1 0.5 2.7 0.5 1.2 1.2 1.2 1.2 1.4 0.8 1.1 2.8 1.9 1.1 0.8 0.6 2.9 1.2

A sociologist claims that children spent more time watching television in 1981 than children do today. A study was conducted in 1981 to find watched television on weekdays. Recently, a similar study was conducted. The results of these studies (in hours per weekday) are shown b population standard deviation is 0.6 for 1981 and 0.7 for today. At a = 0.05, can you support the sociologist's claim? Complete parts (a) thro Full data set O 1981 3.5 2.5 2.6 2.7 2.3 1.3 2.1 2.9 2.6 1.6 2.8 2.2 2.9 1.3 3.3 2.6 3.1 2.5 1.6 2.7 1.7 1.6 2.6 2.1 1.7 1.4 3.1 2.3 2.2 1.4 Recently 2.3 2.1 1.3 1.9 2.6 0.9 1.8 0.9 2.2 1.2 0.9 0.7 2.1 0.5 2.7 0.5 1.2 1.2 1.2 1.2 1.4 0.8 1.1 2.8 1.9 1.1 0.8 0.6 2.9 1.2

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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A sociologist claims that children spent more time watching television in 1981 than children do today. A study was conducted in 1981 to find the time that children watched television on weekdays. Recently, a similar study was conducted. The results of these studies (in hours per weekday) are shown below. Assume the population standard deviation is 0.6 for 1981 and 0.7 for today. At a = 0.05, can you support the sociologist's claim? Complete parts (a) through (d) below. Full data set O 1981 3.5 2.5 2.6 2.7 2.3 1.3 2.1 2.9 2.6 1.6 2.8 2.2 2.9 1.3 3.3 2.6 3.1 2.5 1.6 2.7 1.7 1.6 2.6 2.1 1.7 1.4 3.1 2.3 2.2 1.4 Recently 2.3 2.1 1.3 1.9 2.6 0.9 1.8 0.9 2.2 1.2 0.9 0.7 2.1 0.5 2.7 0.5 1.2 1.2 1.2 1.2 1.4 0.8 1.1 2.8 1.9 1.1 0.8 0.6 2.9 1.2 What is the rejection region? Select the correct choice below and fill in the answer box(es) within your choice. (Round to three decimal places as needed.) A. z< or z> С. z> B. C.
Transcribed Image Text:A sociologist claims that children spent more time watching television in 1981 than children do today. A study was conducted in 1981 to find the time that children watched television on weekdays. Recently, a similar study was conducted. The results of these studies (in hours per weekday) are shown below. Assume the population standard deviation is 0.6 for 1981 and 0.7 for today. At a = 0.05, can you support the sociologist's claim? Complete parts (a) through (d) below. Full data set O 1981 3.5 2.5 2.6 2.7 2.3 1.3 2.1 2.9 2.6 1.6 2.8 2.2 2.9 1.3 3.3 2.6 3.1 2.5 1.6 2.7 1.7 1.6 2.6 2.1 1.7 1.4 3.1 2.3 2.2 1.4 Recently 2.3 2.1 1.3 1.9 2.6 0.9 1.8 0.9 2.2 1.2 0.9 0.7 2.1 0.5 2.7 0.5 1.2 1.2 1.2 1.2 1.4 0.8 1.1 2.8 1.9 1.1 0.8 0.6 2.9 1.2 What is the rejection region? Select the correct choice below and fill in the answer box(es) within your choice. (Round to three decimal places as needed.) A. z< or z> С. z> B. C.
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