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A sociologist claims that children spent more time watching television in 1981 than children do today. A study was condu watched television on weekdays. Recently, a similar study was conducted. The results of these studies (in hours per we population standard deviation is 0.7 for 1981 and 0.7 for today. At a = 0.05, can you support the sociologist's claim? Com Full data set O 1981 1.4 1.6 1.1 1,5 2.2 1.4 2.5 2.2 2.8 1.5 3.4 1.7 2.3 1.2 2.3 1.2 2.9 2.3 3.3 3.3 2.1 3.4 2.8 1.1 1.2 2.8 1.4 2.1 1.8 2.8 Recently 2.6 1.9 3.2 1.8 1.8 3.2 2.8 3.2 2.9 2.3 2.5 2.1 1.7 1.1 2.2 1.8 2.7 2.3 0.8 2.9 2.2 1.7 2.1 0.9 2.5 2.4 2.8 2.6 3.2 2.1 A. Children spent more time watching television in 1981 than today. B. Children spent a different amount of time watching television in 1981 than today. C. Children spent the same amount time watching television in 1981 than today. O D. Children spent less time watching television in 1981 than today. Let the data from 1981 be sample 1 and let the recent data be sample 2. Identify Ho and Ha. Ho H1 42 Ha: H1 H2

A sociologist claims that children spent more time watching television in 1981 than children do today. A study was condu watched television on weekdays. Recently, a similar study was conducted. The results of these studies (in hours per we population standard deviation is 0.7 for 1981 and 0.7 for today. At a = 0.05, can you support the sociologist's claim? Com Full data set O 1981 1.4 1.6 1.1 1,5 2.2 1.4 2.5 2.2 2.8 1.5 3.4 1.7 2.3 1.2 2.3 1.2 2.9 2.3 3.3 3.3 2.1 3.4 2.8 1.1 1.2 2.8 1.4 2.1 1.8 2.8 Recently 2.6 1.9 3.2 1.8 1.8 3.2 2.8 3.2 2.9 2.3 2.5 2.1 1.7 1.1 2.2 1.8 2.7 2.3 0.8 2.9 2.2 1.7 2.1 0.9 2.5 2.4 2.8 2.6 3.2 2.1 A. Children spent more time watching television in 1981 than today. B. Children spent a different amount of time watching television in 1981 than today. C. Children spent the same amount time watching television in 1981 than today. O D. Children spent less time watching television in 1981 than today. Let the data from 1981 be sample 1 and let the recent data be sample 2. Identify Ho and Ha. Ho H1 42 Ha: H1 H2

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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 0.7 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 3.4 1.7 2.3 1.2 2.3 1.4 1.6 1.1 1.5 2.2 1.4 2.5 2.2 2.8 1.5 1.2 2.9 2.3 3.3 3.3 2.1 3.4 2.8 1.1 1.2 2.8 1.4 2.1 1.8 2.8 Recently 2.6 1.9 3.2 1.8 1.8 3.2 2.8 3.2 2.9 2.3 2.5 2.1 1,7 1.1 2.2 1.8 2.7 2.3 0.8 2.9 2.2 1.7 2.1 0.9 2.5 2,4 2.8 2.6 3.2 2.1 Children spent more time watching television in 1981 than today. OB. Children spent a different amount of time watching television in 1981 than today. OC. Children spent the same amount time watching television in 1981 than today. O D. Children spent less time watching television in 1981 than today. Let the data from 1981 be sample 1 and let the recent data be sample 2. Identify Ho and Ha. Ho: H1 H2 Hai H1
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 0.7 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 3.4 1.7 2.3 1.2 2.3 1.4 1.6 1.1 1.5 2.2 1.4 2.5 2.2 2.8 1.5 1.2 2.9 2.3 3.3 3.3 2.1 3.4 2.8 1.1 1.2 2.8 1.4 2.1 1.8 2.8 Recently 2.6 1.9 3.2 1.8 1.8 3.2 2.8 3.2 2.9 2.3 2.5 2.1 1,7 1.1 2.2 1.8 2.7 2.3 0.8 2.9 2.2 1.7 2.1 0.9 2.5 2,4 2.8 2.6 3.2 2.1 Children spent more time watching television in 1981 than today. OB. Children spent a different amount of time watching television in 1981 than today. OC. Children spent the same amount time watching television in 1981 than today. O D. Children spent less time watching television in 1981 than today. Let the data from 1981 be sample 1 and let the recent data be sample 2. Identify Ho and Ha. Ho: H1 H2 Hai H1
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