Preliminary data analyses indicate that you can reasonably use a t-test to conduct each of the hypothesis tests required in Exercises TV Viewing. According to Communications Industry Forecast&Report, published by Veronis Suhler Stevenson, the average person watched 4.55 hours of television per day in 2005. A random sample of 20 people gave the following number of hours of television watched per day for last year. 1.0 4.6 5.4 3.7 5.2 1.7 6.1 1.9 7.6 9.1 6.9 5.5 9.0 3.9 2.5 2.4 4.7 4.1 3.7 6.2 At the 10% significance level, do the data provide sufficient evidence to conclude that the amount of television watched per day last year by the average person differed from that in 2005? (Note: x = 4.760 hours and s = 2.297 hours.)

Question

Preliminary data analyses indicate that you can reasonably use a t-test to conduct each of the hypothesis tests required in Exercises

TV Viewing. According to Communications Industry Forecast&Report, published by Veronis Suhler Stevenson, the average person watched 4.55 hours of television per day in 2005. A random sample of 20 people gave the following number of hours of television watched per day for last year.

1.0 4.6 5.4 3.7 5.2
1.7 6.1 1.9 7.6 9.1
6.9 5.5 9.0 3.9 2.5
2.4 4.7 4.1 3.7 6.2

At the 10% significance level, do the data provide sufficient evidence to conclude that the amount of television watched per day last year by the average person differed from that in 2005? (Note: x = 4.760 hours and s = 2.297 hours.)

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