##### Zoology Lab Quiz 1

Tentative ideas

Hypotheses

Why must hypotheses be stated

So that they can have the potential to be proven false

Hypotheses that are repeatedly tested and inferred to be true and integrated with other similar 'true' hypotheses

Theory

Two general hypotheses formed by scientists during investigations

Research Hypotheses and statistical hypotheses

If P > a..

accept the null hypothesis, the means are not significantly different.

Statistical Hypotheses

Outgrowth of the research hypothesis. and statements about particular data sample.

What are the two different Statistical Hypotheses?

Null hypothesis

Alternative hypothesis

Outgrowth of research hypothesis and statements about particular data sample

Statistical hypothesis

What does a large variance mean?

that the individual scores deviate considerably from the mean

What is a population

Any aggregation of individual objects that can be quantified.

What is a population

Any aggregation of individual objects that can be quantified.

What is a statistical test used for?

to confirm that the difference between sample and means is significant.

The number of individual events that are free to vary in a given sample.

degrees of freedom

The probability of making a type 1 error (falsely rejecting the null hypothesis)

P-Value

If P > a..

accept the null hypothesis, the means are no significantly different.

If P < a

Reject the null hypothesis, the means are significantly different.