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.

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