Question

6. 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 (Note that x ̅=4.76 and s=2.297.) 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? (You have to state appropriate hypotheses, test statistic, critical value, and your conclusions. Only Minitab results are not accepted in this part.)

Answer 1

as test statistics does not fall in rejection region, we can not reject null hypothesis

we do not have evidence at 0.1 level to conclude that  the amount of television watched per day last year by the average person differed from that in 2005.