There is sufficient evidence at the alpha 005 level to conclude that the mean height of all such sunflower seedlings is less than 157 cm.

Example of hypothesis experiment. For example someone performing experiments on plant growth might report this hypothesis. A hypothesis predicts the relationship between independent and dependent variables. It is a Prediction.

Cold weather causes maple trees to lose their leaves in the fall This statement is. For example someone performing experiments on plant growth might report this hypothesis. Specifically you ask how the number of minutes a person uses their phone before sleep affects the number of hours they sleep.

An independent variable is something you change as part of an experiment such as the amount of water given to a plant. The alternative hypothesis is that the average cholesterol level of these children is greater than 175 mgdl. This statement satisfies both criteria for experimental hypotheses.

Phone use and sleep You want to know how phone use before bedtime affects sleep patterns. For example lets say you have a bad breakout the morning after eating a lot of greasy food. The sugar dissolved and the water tasted sweeter A possible hypothesis for this experiment could be.

It predicts the anticipated outcome of the experiment. You may wonder if there is a correlation between eating greasy food and getting pimples. First you should include a list of all the material that you will need.

You propose the hypothesis. Specifically you ask how. In the example above the null hypothesis is that the average cholesterol level of these children is 175 mgdl.