To see if your results are accurate
To check the probability of your results applying to the wider population
To make sure you have not made a mistake in your data collection
The number of friends that participants have on Facebook
The type of breakfast cereal that people prefer
The number of questions correctly answered in a test
The number of albums each person has on their I-Pod
The type of pets people have (if any)
That participants had an average score of 0.05
The probability of results occuring by chance is equal to or less that 0.05
There is a 0.05 chance that the results are wrong
Rejecting a null hypothesis that is true
Retaining a null hypothesis that is false
Inputting your data inaccurately in a statistical test
Accept the null hypothesis and reject the experimental hypothesis
Reject the null hypothesis and accept the experimental hypothesis
Re-write the hypothesis
There will be a difference between the length of time taken to complete a test online and the time taken to complete a test on paper.
Tests completed online will be completed faster than tests completed on paper.
There will be no difference between the length of time taken to complete tests online and tests completed on paper, and if there is it is due to chance.