2021-12-19

## Should I use standard deviation or standard error?

So, if we want to say how widely scattered some measurements are, we use the standard deviation. If we want to indicate the uncertainty around the estimate of the mean measurement, we quote the standard error of the mean. The standard error is most useful as a means of calculating a confidence interval.

## What is testimony explain the difference between expert testimony and peer testimony?

Expert testimony is testimony given by a person who is considered an expert by virtue of education, training, certification, skills, and/or experience in a particular matter. Peer testimony is given by a person who does not have expertise in a particular matter.

## What are the 3 guidelines for using statistics in a speech?

Use them sparingly and to quantify ideas, their sources should be identified in the speech, they should be explained and made meaningful to the audience, complicated statistics should be rounded off, and statistical trends should be clarified with visual aids.

## What is uncertainty and why does it matter?

Why does uncertainty matter? Uncertainty affects all measurements. For critical measurements uncertainty can mean the difference between a pass or fail decision.Esfand 20, 1398 AP

## What are supporting materials?

A Definition: The term supporting materials refers to the information a person provides to develop and/or justify an idea that is offered for a listener’s consideration.

## What are the three major divisions of a well structured speech?

Speeches are organized into three main parts: introduction, body, and conclusion.

• Introduction. The introduction of the speech establishes the first, crucial contact between the speaker and the audience.
• Body. In the body, the fewer the main points the better.
• Conclusion.

## How do you interpret a standard deviation?

More precisely, it is a measure of the average distance between the values of the data in the set and the mean. A low standard deviation indicates that the data points tend to be very close to the mean; a high standard deviation indicates that the data points are spread out over a large range of values.

## Is it better to have a higher or lower standard deviation?

Standard deviation is a mathematical tool to help us assess how far the values are spread above and below the mean. A high standard deviation shows that the data is widely spread (less reliable) and a low standard deviation shows that the data are clustered closely around the mean (more reliable).

## What is the most important aspect of a speech?

Perhaps the most important aspect of effective communication is congruence. For communication to be effective, your non-verbal communication needs to reinforce your words: the two must say the same thing.