Question

The below data shows the amount of time (in seconds) that animated Disney movies showed the use of
tobacco and alcohol. Test the claim that the mean difference in time of tobacco use vs. alcohol use is
equal to zero at the 0.1 significance level.
Hint: The standard deviation of the differences is 12.0613

Tobacco Alcohol
37.7 71.2
52.4 62.3
56 90.6
38.6 52.5
42.9 55.4
53.1 56.9
59.8 62.7
39.4 74
44.3 77.8
42.1 49.2
49.2 56.2
45.6 60.4
36.8 61.1
34 65.5
45.8 63.7

Find the Test statistic from this two tailed test

Find the critical value:

What determination can you make on the null hypothesis?

Answer 1