Question

5 4 6 Question 6 of 7 (1 point) Atempt 1 of Unlimited View question in a popup 8.3 Section Exercise 20 (p-value, caic) Watching TV: In 2012, the General Social Survey asked a sample of 1310 people how much time they spent watching TV each day. The mean number of hours was 2.8 with a standard deviation of 2.6. A sociologist claims that people watch a mean of 3 hours of TV per day. Do the data provide sufficient evidence to conclude that the mean hours of TV watched per day is less than the claim? Use the a-0.10 level of significance and the P-value method with the TI-84 Plus calculator. Part: 0/4 Part 1 of 4 (a) State the appropriate null and alternate hypotheses. Но H test. This hypothesis test is a (Choose one)

Answer 1

Page No. let X: times spent on to by people in a day, Call Ho! l=3 Hi e L3 This hypothesis test right Cone) tailed test. Here na 1310 we have , sumple mean = 2 = 2.8. sample variance = is = 2.6. O level of significance = x= cato o.10. i Test Statistic t= X-1 N tona) t = 2 = -2 .78. .8 -3 206/11312 - 0.2 0'0718 . P-vallle = Pctcn-1) 7 1 tcall] =P [tigog 7 2.28] P-value = 0.0027 R P-value = 0.0027 we may rejcet Ho 2=0.10. at 10 o 1.o.s. Thus pater mean hour less than provide sufficient evidance that TV watch per day bis the claim ic. 3 hours: