*Average recovery times for knee surgery patients is 8.2 weeks.(The alternate hypothesis): μ (the average) ≠ (is not equal to) 8.2 That’s How to State the Null Hypothesis! ------------------------------------------------------------------------------ Need help with a homework or test question? *

*Average recovery times for knee surgery patients is 8.2 weeks.*(The alternate hypothesis): μ (the average) ≠ (is not equal to) 8.2 That’s How to State the Null Hypothesis! ------------------------------------------------------------------------------ Need help with a homework or test question? Research hypotheses are numeric estimates of population values based on data collected from samples.

The null hypothesis states that there is no relationship between the two variables being studied (one variable does not affect the other).

It states results are due to chance and are not significant in terms of supporting the idea being investigated.

A two-tailed non-directional hypothesis predicts that the independent variable will have an effect on the dependent variable, but the direction of the effect is not specified.

E.g., there will be a difference in how many numbers are correctly recalled by children and adults.

The alternative hypothesis states that there is a relationship between the two variables being studied (one variable has an effect on the other).

It states that the results are not due to chance and that they are significant in terms of supporting the theory being investigated.

At a minimum, your experiment will likely not be taken seriously. Several scientists, including Copernicus, set out to disprove the null hypothesis.

Not so long ago, people believed that the world was flat. This eventually led to the rejection of the null and the acceptance of the alternate.

Let’s consider a hypothesis that many teachers might subscribe to: that students work better on Monday morning than they do on a Friday afternoon (IV=Day, DV=Standard of work).

Now, if we decide to study this by giving the same group of students a lesson on a Monday morning and on a Friday afternoon and then measuring their immediate recall on the material covered in each session we would end up with the following: The null hypothesis is, therefore, the opposite of the alternative hypothesis in that it states that there will be no change in behavior.

## Comments Research Paper Hypothesis Example

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The null hypothesis, H0 is the commonly accepted fact; it is the opposite of the alternate hypothesis. Researchers work to reject, nullify or disprove the null.…