On a Scale Where the Sun Is About the Size

question 113

Multiple Choice

On a scale where the Sun is about the size of a grapefruit and the Earth is about 15 meters away, how far away are the nearest stars besides the Sun?

• A)about the distance across the state of Delaware
• B)about the distance across 50 football fields
• C)100 meters
• D)about the distance across the United States

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Definitions:

Confidence Intervals

A range of values, derived from sample statistics, that is believed to contain the true population parameter with a certain level of confidence.

Unknown Parameters

Quantities in a statistical model that are not known a priori but are estimated from data.

P-values

The probability of observing a statistic as extreme as, or more extreme than, the statistic observed under the assumption that the null hypothesis is true.

Two-sided

Pertaining to hypothesis tests that consider deviations in both directions away from a specified null hypothesis.