It is to form hypotheses because they focus your investigation on a single idea to be tested. suppose that a farmer wants to determine what the best growing conditions are for almond trees on his farm.

I understand the question here to be "propose a hypothesis that could be useful to the farmer".

Let's see again what the farmer wants to know:" the best growing conditions are for almond trees on his farm. "

Now, there is no way of testing for "the best", but the farmer could make some variations and check their influence on the farm.

The hypothesis have to phrased as statements so for example:

1. Trees that receive more water, are taller
2. Trees that receive more water, produce more almonds
3. Trees that receive more water, produce bigger almonds.
 

The business cycle is the periodic but irregular up-and-down movement in economic activity, measured by fluctuations in real gross domestic product (gdp) and other macroeconomic variables. a business cycle is typically characterized by four phases—recession, recovery, growth, and decline—that repeat themselves over time. economists note, however, that complete business cycles vary in length. the duration of business cycles can be anywhere from about two to twelve years, with most cycles averaging six years in length. some business analysts use the business cycle model and terminology to study and explain fluctuations in business inventory and other individual elements of corporate operations. but the term "business cycle" is still primarily associated with larger (industry-wide, regional, national, or even international) business trends.