How are the hypothesis classified? My posted question is related with Research Methodology

Hypothesis are classified in four broad
categories:

• Relational
  Hypothesis


• Causal Hypothesis
  


• Null Hypothesis


• Alternate
  Hypothesis

Relational Hypothesis states an
assumptions that describes the relationship between two variables. The relationship
suggested may be positive, negative or causal relationship. For example the hypothesis
may state that customers tend to spend more time in stores with better
atmospherics.

Causal Hypothesis affirm that the existence
of or change in one variable causes or leads to an effect on another variable. The first
of the two variable is called the independent variable and the latter is the dependant
variable.

Null hypothesis is a causal hypothesis stated
negatively. It states that one variable makes no difference to or has no relationship
with another. For example the hypothesis may state that the store atmospheric has no
influence on the time customers spend in the
store.

Alternate hypothesis simply states the existence of
a relationship without predicting the nature of relationship. For example hypothesis may
state that there is a definite relationship between the time spent by customers in store
and the store atmospherics