In
hypothesis testing, one can only positively prove something by disproving the
null hypothesis. I this case, the null hypothesis is that there is no
relationship between eating frozen pizza and dangerous cholesterol levels.
A p
value of a statistical summary (such as the sample mean difference between two
compared groups) indicates the probability that the null hypothesis is true.
Generally, a p value < 0.05 is usually taken to be statistically
significant, i.e. a 5% chance that the null hypothesis is true. In this case,
the relationship was find to be non-significant.
