Question

A sociologist claims that children spent more time watching television in 1981 than children do today. A study was conducted in 1981 to find the time that children watched television on weekdays. Recently, a similar study was conducted. The results of these studies (in hours per weekday are shown below. Assume the population standard deviation is 0.7 for 1981 and 0.8 for today, At a = 0.05, can you support the sociologist's claim? Complete parts (a) through (d) below. Full data set 1981 2.1 3.5 2.2 3.5 1.1 1.4 2.6 1.5 1.8 2.1 2.5 1.7 1.7 1.1 2.5 1.9 3.2 2.2 2.9 1.2 3.3 2.7 2.2 1.9 2.6 2.2 2.6 1.7 2.7 3.4 Recently 2.9 2.1 2.9 1.2 2.7 1.9 2.8 0.9 2.9 1.1 2.7 2.7 0.5 2.8 2.1 2.7 0.7 1.6 0.8 2.5 1.3 2.8 1.7 1.9 0.7 1.7 1.2 1.3 1.1 0.6 (a) Identify the claim and state Ho and H What is the claim? A. Children spent more time watching television in 1981 than today. B. Children spent the same amount time watching television in 1981 than today Children enant lee time watching tolasinn in 101 than indo Click to select your answer(s).

Answer 1

^{Ans the correct ans to part d is}

^{Reject Ho. There is enough evidence at the 5% level of significance to support the sociologist claim that the children spent more amount of time watching television in 1981 than children do today}