The following table contains information on the amount of time spent each day (on average) on social networks and the Internet for social or entertainment purposes and the grade point average for a random sample of 12 college students. Time (hours per day) 4.2 6.2 4.2 1.6 4.7 5.2 1.4 2.0 6.1 3.2 4.5 3.5 GPA 3.22 2.21 3.13 3.69 2.70 2.20 3.69 3.25 2.66 2.89 2.71 3.36 a. Construct a 98 % confidence interval for B. Round your answers to three decimal places. to i b. Test at the 1 % significance level whether B is negative. Based on a 1 % significance level test, we conclude that B * negative.
The following table contains information on the amount of time spent each day (on average) on social networks and the Internet for social or entertainment purposes and the grade point average for a random sample of 12 college students. Time (hours per day) 4.2 6.2 4.2 1.6 4.7 5.2 1.4 2.0 6.1 3.2 4.5 3.5 GPA 3.22 2.21 3.13 3.69 2.70 2.20 3.69 3.25 2.66 2.89 2.71 3.36 a. Construct a 98 % confidence interval for B. Round your answers to three decimal places. to i b. Test at the 1 % significance level whether B is negative. Based on a 1 % significance level test, we conclude that B * negative.
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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Transcribed Image Text:The following table contains information on the amount of time spent each day (on average) on social networks and the Internet for
social or entertainment purposes and the grade point average for a random sample of 12 college students.
Time (hours per day)
4.2
6.2
4.2
1.6
4.7
5.2
1.4
2.0
6.1
3.2
4.5
3.5
GPA
3.22 2.21
3.13 3.69 2.70 2.20 3.69 3.25 2.66 2.89 2.71 3.36
a. Construct a 98 % confidence interval for B.
Round your answers to three decimal places.
i
to
i
b. Test at the 1 % significance level whether B is negative.
Based on a 1 % significance level test, we conclude that B
* negative.
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