Question 2 According to Nielsen Media Research, children (Group 1-ages 2-11) spend an average of 21.5 hours watching television per week while teens (Group 2-ages 12-17) spend an average of 20.67 hours. Based on the sample statistics obtained below, is there sufficient evidence to conclude a difference in average television watching times between the two groups? Assume that the population variances are not equal. Use α = 0.01. Sample mean Sample variance Sample size Children 22.45 16.4 15 Teens 18.50 18.2 15 Required: Test Value=2.6 Round-off your answer to two decimal places.

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Question 2
According to Nielsen Media Research, children (Group 1-ages 2-11) spend an average of 21.5
hours watching television per week while teens (Group 2-ages 12-17) spend an average of 20.67 hours.
Based on the sample statistics obtained below, is there sufficient evidence to conclude a difference in
average television watching times between the two groups? Assume that the population variances are not
equal. Use α = 0.01.
Sample mean
Sample variance
Sample size
Children
22.45
16.4
15
Teens
18.50
18.2
15
Required: Test Value=2.6
Round-off your answer to two decimal places.
Transcribed Image Text:Question 2 According to Nielsen Media Research, children (Group 1-ages 2-11) spend an average of 21.5 hours watching television per week while teens (Group 2-ages 12-17) spend an average of 20.67 hours. Based on the sample statistics obtained below, is there sufficient evidence to conclude a difference in average television watching times between the two groups? Assume that the population variances are not equal. Use α = 0.01. Sample mean Sample variance Sample size Children 22.45 16.4 15 Teens 18.50 18.2 15 Required: Test Value=2.6 Round-off your answer to two decimal places.
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