When scientists and researchers notice patterns in data, they need a way to make sure those patterns cannot be explained by coincidence or other variables. Hypothesis testing is a way of comparing ...

A null hypothesis is a prediction that there is no statistical relationship between two variables or two sets of data. Essentially, a null hypothesis assumes that any measured differences are the ...

These are two competing statements. The null hypothesis (called H0) usually follows the format that “there is no difference between these numbers” or “there is no relationship between variables”. The ...

"We think we can make something better or find out what is going on in this interesting area if we try a bunch of things and apply several sophisticated techniques to study this." These proposals are ...

Save guides, add subjects and pick up where you left off with your BBC account. A hypothesis is an idea about how something works that can be tested using experiments. A prediction says what will ...

and what the relationship is between the variables. A hypothesis in practical work is a prediction that is supported with an explanation. The explanation might use previous knowledge or scientific ...