Interpret the level of statistical significance for the event described.
-A national survey was done. It showed that a sample of 605 men aged 25-34 watched an average of 9 hours of television a week. A sample of 503 men aged 45-54 watched an average of 19 hours of television a
Week. This difference is significant at the 0.05 level. Interpret the result.
A)There is not enough information to make any conclusion.
B)The probability that the difference was due to chance alone is greater than 0.05.
C)The probability is less than 0.05 that the older group watches more television by chance alone.
D)The older group watches more television because they have more televisions.

Question

Quizplus · Accepted Answer

The result being significant at the 0.05 level means there is less than a 5% chance (probability less than 0.05) that the observed difference in average weekly television watching hours between the two age groups occurred by random chance alone.

Interpret the Level of Statistical Significance for the Event Described