A Scientist Has Concluded That Two Variables Are Significantly Correlated

question 8

Multiple Choice

A scientist has concluded that two variables are significantly correlated when in fact they are not. The scientist has

• A) made a Type 1 error.
• B) miscalculated the p-value.
• C) a small effect size.
• D) low statistical power.

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Definitions:

Pixel

A single point that creates the images on a computer monitor. Pixels are illuminated by an electron beam that passes rapidly back and forth across the back of the screen so that the pixels appear to glow continuously.

Hertz

A unit of frequency equal to one cycle per second, used to measure the frequency of oscillations and vibrations.

Bit

The most basic unit of data in computing and digital communications, which can have a value of either 0 or 1.

Ppm

Parts per million, a unit of measurement used to describe the concentration of a substance in a mixture or solution.